colautti franklin argued october decided january section pennsylvania abortion control act requires every person performs abortion make determination based experience judgment professional competence fetus viable person determines fetus viable sufficient reason believe fetus may viable must exercise care preserve fetus life health required case fetus intended born alive must use abortion technique providing best opportunity fetus aborted alive long different technique necessary preserve mother life health act also imposes penal sanction violation appellees brought suit claiming inter alia unconstitutionally vague district upheld claim held requirement void vagueness pp though apparently determination whether fetus viable rest upon basis attending physician experience judgment professional competence ambiguous whether subjective language applies second condition activates duty fetus sufficient reason believe fetus may viable pp intended distinction viable may viable elusive apparently phrases refer distinct conditions one indeterminately differs definition viability set forth roe wade planned parenthood central missouri danforth pp vagueness requirement compounded fact subjects physician potential criminal liability without regard fault absence scienter requirement provision directing physician determine whether fetus may viable act little trap act good faith ragen perils strict criminal liability particularly acute uncertainty viability determination pp provision likewise impermissibly vague uncertain whether statute permits physician consider duty patient paramount duty fetus whether requires physician make patient health increased chances fetal survival conflicting duties magnitude involved must greater statutory precision physician may subjected possible criminal sanctions pp blackmun delivered opinion brennan stewart marshall powell stevens joined white filed dissenting opinion burger rehnquist joined post carol los mansmann special assistant attorney general pennsylvania argued cause appellants brief jerome mansmann special assistant attorney general roland morris argued cause filed brief appellees burt neuborne sylvia law filed brief american public health assn et al amici curiae urging affirmance briefs amici curiae filed george reed patrick geary catholic conference dennis horan john gorby victor rosenblum dolores horan americans life justice blackmun delivered opinion issue constitutionality subsection pennsylvania abortion control act laws act stat tit purdon statute subjects physician performs abortion potential criminal liability fails utilize statutorily prescribed technique fetus viable sufficient reason believe fetus may viable federal district declared unconstitutionally vague overbroad enjoined enforcement app pursuant noted probable jurisdiction sub nom beal franklin abortion control act passed pennsylvania legislature governor veto year following decisions roe wade doe bolton comprehensive statute section gave act title section defined among terms informed consent viable latter specified mean capability fetus live outside mother womb albeit artificial aid see roe wade section proscribed performance abortion upon person absence informed consent thereto person section prohibited performance abortion absence written consent woman spouse provided spouse located notified abortion certified licensed physician necessary order preserve life health mother section ii applicable woman unmarried age forbade performance abortion absence written consent one parent person loco parentis woman unless abortion certified licensed physician necessary order preserve life mother section provided whoever performed abortion without consent guilty misdemeanor first degree section provided whoever intentionally willfully took life premature infant aborted alive guilty murder second degree section set forth supra provided fetus determined viable sufficient reason believe fetus might viable person performing abortion required exercise care preserve life health fetus required case fetus intended born alive required adopt abortion technique providing best opportunity fetus aborted alive long different technique necessary order preserve life health mother section also set forth imposed penal sanction violation section specified abortion controls prohibited abortion stage pregnancy subsequent viability except necessary judgment licensed physician preserve life health mother abortion performed except licensed physician approved facility required appropriate records kept quarterly reports filed commonwealth department health prohibited solicitation advertising respect abortions violation misdemeanor first third degrees specified section prohibited use public funds abortion absence certificate physician stating abortion necessary order preserve life health mother finally authorized department health make rules regulations respect performance abortions facilities abortions performed see stat tit purdon prior act effective date october present suit filed district eastern district pennsylvania challenging federal constitutional grounds nearly act provisions october issued preliminary injunction restraining enforcement number provisions side sought determination plaintiffs defendants motion effect granted case went trial january received extensive testimony expert witnesses aspects abortion procedures resulting judgment declared act severable upheld certain provisions held provisions unconstitutional planned parenthood assn fitzpatrick supp sustained definition informed consent requirement certain reporting requirements authorization rules regulations divided vote informed consent requirement overturned requirement divided vote ii requirement reporting requirements relating spousal parental consent prohibition advertising restriction abortion funding definition viable declared void vagueness incorporation definition proscription abortions viability except preserve life health woman struck finally part incorporation definition viable part perceived overbreadth phrase may viable invalidated provisions sides appealed appeals pending decided virginia state board pharmacy virginia citizens consumer council planned parenthood central missouri danforth singleton wulff virginia state board shed light prohibition advertising abortion services planned parenthood direct bearing issues instructive issue singleton concerned issue standing challenge abortion regulations accordingly portion judgment subject plaintiffs appeal summarily affirmed franklin fitzpatrick portion judgment subject defendants appeal vacated remanded consideration light planned parenthood singleton virginia state board beal franklin remand parties entered stipulation disposed issues except constitutionality relying supervening decisions beal doe maher roe district found contrary original view see violate either tit xix social security act added stat amended et equal protection clause fourteenth amendment app however declared reconsideration section light recent decisions adhere original view decision section unconstitutional since appealed ruling respect issue remaining protracted litigation validity ii three cases sensitive earnestly contested abortion area provide essential background present controversy roe wade concluded right privacy implicit liberty secured fourteenth amendment broad enough encompass woman decision whether terminate pregnancy right said although fundamental absolute unqualified must considered important state interests health pregnant woman potential life fetus interests separate distinct grows substantiality woman approaches term point pregnancy becomes compelling logical biological reasons indicated state interest potential life fetus reaches compelling point stage viability hence prior viability state may seek interest directly restricting woman decision whether terminate pregnancy viability state chooses may regulate even prohibit abortion except necessary appropriate medical judgment preserve life health pregnant woman undertake roe examine various factors may enter determination viability simply observed medical scientific communities fetus considered viable potentially able live outside mother womb albeit artificial aid added must potentiality meaningful life merely momentary survival noted viability usually placed seven months weeks may occur earlier even weeks thus left point flexible anticipated advancements medical skill roe stressed repeatedly central role physician consulting woman whether abortion determining abortion carried indicated points important state interests provide compelling justifications intervention abortion decision aspects inherently primarily medical decision added privilege abused usual remedies judicial available ibid roe companion case doe bolton underscored importance affording physician adequate discretion exercise medical judgment reiterated pregnant woman absolute constitutional right abortion demand discussed context georgia statute requirement physician decision perform abortion must rest upon best clinical judgment found critical judgment may exercised light factors physical emotional psychological familial woman age relevant patient third case planned parenthood central missouri danforth stressed similar themes missouri statute defined viability challenged ground conflicted discussion viability roe reality attempt advance point viability earlier stage gestation rejected argument repeated roe definition viability observed viability matter medical judgment skill technical ability preserved roe flexibility term also rejected contention specified number weeks pregnancy must fixed statute point viability said event agree district proper function legislature courts place viability essentially medical concept specific point gestation period time viability achieved may vary pregnancy determination whether particular fetus viable must matter judgment responsible attending physician principles mind turn issues presented instant controversy iii attack mounted upon centers requirement stated standard care former provision requiring physician observe care standard determines fetus viable sufficient reason believe fetus may viable asserted unconstitutionally vague fails inform physician duty fetus arises make physician determination viability conclusive provision also said unconstitutionally overbroad carves new time period prior stage viability restrictive effect couple wants abort fetus determined genetic testing defective standard care particular requirement physician employ abortion technique provide best opportunity fetus aborted alive long different technique necessary order preserve life health mother said void vagueness unconstitutionally restrictive failing afford physician sufficient professional discretion determining abortion technique appropriate opposition assert pennsylvania statute concerned abortions prescribing standard care abortions assert terminology may viable correctly describes statistical probability fetal survival associated viability requirement otherwise sufficiently definite interpreted medical community legislature judiciary determine whether viable genetically defective fetus right life contend provision preserves flexibility required sound medical practice simply requires physician choice procedures equal risk woman must select procedure least likely fatal fetus iv agree requirement ambiguous uncertainty aggravated absence scienter requirement respect finding viability conclude portion statute void vagueness find unnecessary consider appellees alternative arguments based alleged overbreadth settled matter due process criminal statute fails give person ordinary intelligence fair notice contemplated conduct forbidden statute harriss indefinite encourages arbitrary erratic arrests convictions papachristou jacksonville void vagueness see generally grayned city rockford appears especially true uncertainty induced statute threatens inhibit exercise constitutionally protected rights smith goguen keyishian board regents section requires every person performs induces abortion make determination based experience judgment professional competence fetus viable person determines fetus viable sufficient reason believe fetus may viable must adhere prescribed standard care see supra requirement contains double ambiguity first unclear whether statute imports purely subjective standard whether imposes mixed subjective objective standard second uncertain whether phrase may viable simply refers viability term defined roe planned parenthood whether refers undefined penumbral gray area prior stage viability statute requires physician conform prescribed standard care one two conditions satisfied determines fetus viable sufficient reason believe fetus may viable apparently determination whether fetus viable based attending physician experience judgment professional competence subjective point reference unclear whether phrase applies second triggering condition sufficient reason believe fetus may viable words ambiguous whether must sufficient reason perspective judgment skill training attending physician sufficient reason perspective cross section medical community panel experts latter obviously portends inconsequential hazard typical private practitioner may skills technology readily available teaching hospital large medical center intended distinction phrases viable may viable even elusive appellants argue difference intended use may viable words simply incorporates acknowledged medical fact fetus viable statistical chance survival recognized medical community brief appellants statute however support contention may viable synonymous merely intended explicate meaning viable section requires physician observe prescribed standard care determines fetus viable sufficient reason believe fetus may viable emphasis supplied syntax clearly implies two distinct conditions physician must conform standard care appellants argument may viable synonymous viable make either first second condition redundant largely superfluous violation elementary canon construction statute interpreted render one part inoperative see menasche furthermore suggestion may viable explication meaning viable flies face fact statute already defines viable presumably intended exclusive definition viable throughout act respect significant act speaks limited availability abortion stage pregnancy subsequent viability concept viability important yet legislature found unnecessary explain viable fetus includes one may viable since must reject appellants theory may viable means viable second serious ambiguity appears statute one hand appellees urge district found see may may viable carves new time period pregnancy remote possibility fetal survival outside womb fetus yet attained reasonable likelihood survival physicians associate viability hand although appellants argue may may viable refers viability physicians understand viable refers undetermined stage later pregnancy need resolve question crucial point viable may viable apparently refer distinct conditions one conditions differs indeterminate way definition viability set forth roe planned parenthood double ambiguity requirement portion pennsylvania statute readily distinguishable requirement abortion must necessary preservation mother life health upheld vagueness challenge vuitch requirement physician determine basis best clinical judgment abortion necessary upheld vagueness attack doe bolton contested provisions cases interpreted allow physician make determination light attendant circumstances psychological emotional well physical might relevant patient present statute afford broad discretion physician instead conditions potential criminal liability confusing ambiguous criteria therefore presents serious problems notice discriminatory application chilling effect exercise constitutional rights vagueness requirement compounded fact act subjects physician potential criminal liability without regard fault see supra physician fails abide standard care sufficient reason believe fetus may viable subject civil criminal liability pertain fetus child intended born aborted sure pennsylvania law criminal homicide made applicable physician conditions guilt upon finding scienter see stat tit purdon supp required mental state however intentionally knowingly recklessly negligently caus ing death another human thus pennsylvania law criminal homicide requires scienter respect whether physician actions result death fetus neither pennsylvania law criminal homicide abortion control act requires physician culpable failing find sufficient reason believe fetus may viable long recognized constitutionality vague statutory standard closely related whether standard incorporates requirement mens rea see example gypsum papachristou jacksonville boyce motor lines absence scienter requirement provision directing physician determine whether fetus may viable statute little trap act good faith ragen perils strict criminal liability particularly acute uncertainty viability determination record case indicates physician determines whether fetus viable considering number variables gestational age fetus derived reported menstrual history woman fetal weight based inexact estimate size condition uterus woman general health nutrition quality available medical facilities factors number imprecision variables probability particular fetus obtaining meaningful life outside womb determined difficulty moreover record indicates even agreement may reached probability survival different physicians equate viability different probabilities survival physicians refuse equate viability numerical probability face uncertainties unlikely experts disagree whether particular fetus second trimester advanced stage viability prospect disagreement conjunction statute imposing strict civil criminal liability erroneous determination viability profound chilling effect willingness physicians perform abortions near point viability manner indicated best medical judgment hold provision void face need decide whether properly drafted statute finding bad faith type scienter required physician held criminally responsible erroneous determination viability reaffirm however determination whether particular fetus viable must matter judgment responsible attending physician planned parenthood central missouri danforth state regulation impinges upon determination constitutional must allow attending physician room needs make best medical judgment doe bolton also conclude provision impermissibly vague provision applies requires physician exercise degree professional skill care diligence preserve life health fetus person required exercise order preserve life health fetus intended born aborted abortion technique employed shall provide best opportunity fetus aborted alive long different technique necessary order preserve life health mother district took extensive testimony various physicians understanding requirement testimony illuminating asked method abortion prefer use second trimester absence plaintiffs experts said thought saline method choice described method involving removal amniotic fluid injection saline solution amniotic sac see planned parenthood central missouri danforth physicians agreed however saline nearly always fatal fetus commonly assumed method prohibited statute plaintiffs defendants respectively asked method choice opinions differed widely preferences ranged abortion prostaglandin infusion hysterotomy oxytocin induction method generally conceded involved disadvantages perspective woman hysterotomy type caesarean section procedure generally considered highest incidence fetal survival abortifacients hysterotomy however associated risks attendant upon operative procedure involving anesthesia incision tissue physicians agreed future children born woman hysterotomy delivered caesarean section likelihood rupture scar testifying physicians direct experience prostaglandins described drugs stimulate uterine contractibility inducing premature expulsion fetus see planned parenthood central missouri danforth generally agreed incidence fetal survival prostaglandins significantly greater saline several physicians testified however prostaglandins undesirable side effects nausea vomiting headache diarrhea indicated unsafe patients history asthma glaucoma hypertension cardiovascular disease epilepsy see wynn scott supp nd one physician recommended oxytocin induction doubted however whether procedure fully effective cases indicated procedure prolonged expensive parties acknowledge disagreement among medical authorities relative merits safety different abortion procedures may used second trimester see brief appellants appellants submit however legally relevant considerations alternatives exist among abortifacients physician mindful state interest protecting viable life must make competent good faith medical judgment feasibility protecting fetus chance survival manner consistent life health pregnant woman read however much problematical statute clearly specify appellants imply woman life health must always prevail fetus life health conflict woman life health mentioned first part stated standard care sets forth general duty viable fetus mentioned second part deals choice abortion procedures moreover second part standard directs physician employ abortion technique best suited fetal survival long different technique necessary order preserve life health mother emphasis supplied context word necessary suggests particular technique must indispensable woman life health merely desirable may adopted life health mother used construed courts commonwealth mean necessarily imply factors relevant welfare woman may taken account physician making decision cf vuitch doe bolton consequently uncertain whether statute permits physician consider duty patient paramount duty fetus whether requires physician make woman health additional percentage points fetal survival serious ethical constitutional difficulties address lurk behind ambiguity hold conflicting duties magnitude involved state least must proceed greater precision may subject physician possible criminal sanctions appellants suggestion requires physician make selection proper abortion procedure finds support either language authoritative interpretation statute certainly nothing suggest mens rea requirement respect decision whether particular abortion method necessary order preserve life health woman choice appropriate abortion technique record case amply demonstrates complex medical judgment experts disagree lack scienter requirement exacerbates uncertainty statute conclude provision like requirement void vagueness judgment district affirmed ordered footnotes every person performs induces abortion shall prior thereto made determination based experience judgment professional competence fetus viable determination fetus viable sufficient reason believe fetus may viable shall exercise degree professional skill care diligence preserve life health fetus person required exercise order preserve life health fetus intended born aborted abortion technique employed shall provide best opportunity fetus aborted alive long different technique necessary order preserve life health mother person fails make determination provided subsection section fails exercise degree professional skill care diligence provide abortion technique provided subsection section shall subject civil criminal liability pertain fetus child intended born aborted designated september pursuant statute repealed pub stat repeal apply action commenced august plaintiffs named complaint amended planned parenthood association southeastern pennsylvania nonprofit corporation appellee john franklin licensed obstetrician gynecologist medical director planned parenthood concern health options information care education choice nonprofit corporation clergy consultation service northeastern pennsylvania voluntary organization later appellee obstetrical society philadelphia intervened party plaintiff named original defendants emmett fitzpatrick district attorney philadelphia county helene wohlgemuth secretary welfare commonwealth pennsylvania subsequently commonwealth attorney general commonwealth intervened parties defendant district ruling challenge eventually dismissed planned parenthood choice clergy consultation plaintiffs planned parenthood assn fitzpatrick supp present posture case consequence suit franklin obstetrical society aldo colautti present secretary welfare attorney general commonwealth district attorney agree district ruling cited opinion doe bolton plaintiff physicians standing challenge claims present justiciable controversy see planned parenthood central missouri danforth preliminarily enjoined enforcement requirements penal provisions requirements restriction abortions subsequent viability requirement reporting provisions penal provisions restrictions funding abortions definitions viable informed consent record doc see planned parenthood assn fitzpatrick ruled present action determined class action behalf class pennsylvania physicians perform abortions counsel female patients regard family planning pregnancy including option abortion members obstetrical society philadelphia practice pennsylvania record doc see also doe zimmerman supp md maher roe ruled state may withhold funding indigent women even though withholding influences abortion decision prior viability however reaffirmed state period may impose direct obstacles criminal penalties interest potential life fetus introduced evidence modern medical technology makes possible detect whether fetus afflicted disorders disease syndrome mongolism testing however often completed weeks gestation app testimony hope punnett ph appellants argue abstention required issue appropriate given extent vagueness afflicts abstain sua sponte see bellotti baird statute says viable means includes capability fetus live outside mother womb albeit artificial aid rule definition declares term means excludes meaning stated sands statutes statutory construction ed supp since ruling today confined conclusion requirement impermissibly vague merit dissenting opinion suggestion post tacitly disown ed definition viability set forth roe planned parenthood contrary noted supra reaffirm said decisions critical concept section provide determination viability based physician experience judgment professional competence subjective standard keyed physician individual skill abilities however different requirement physician culpable blameworthy performance standard moreover noted ambiguous whether subjective language applies second condition activates duty fetus namely sufficient reason believe fetus may viable requirement specific intent prohibited act may avoid consequences accused may otherwise render vague indefinite statute invalid requirement act must willful purposeful may render certain purposes statutory definition crime respects uncertain relieve statute objection punishes without warning offense accused unaware screws plurality opinion see app testimony louis gerstley iii testimony thomas hilgers testimony william keenan see testimony gerstley viability means chance survival certainly least two three percent testimony keenan chance survival viable deposition john franklin viability means ten percent better probability survival testimony arturo hervada misleading obsessed particular percentage figure dissenting opinion questions whether alleged vagueness provision properly us since said issue reached district however declared unconstitutional entirety including requirement provision app appellees prevailing parties may course assert ground support judgment whether ground relied upon even considered trial dandridge williams planned parenthood central missouri danforth struck provision similar first part provision ground applied stages gestation period subsequent viability except extent also alleged apply prior point viability contention reach see supra appellees challenge provision overbreadth grounds app testimony gerstley testimony franklin see testimony franklin testimony fred mecklenburg testimony dilation curettage dilation suction two common methods abortion first trimester normally used second trimester testimony mecklenburg testimony franklin testimony mecklenburg testimony hilgers see testimony gerstley testimony franklin see testimony gerstley testimony franklin see testimony gerstley testimony mecklenburg testimony hilgers testimony gerstley appellants argue suggest abstain passing issue see supra justice white chief justice justice rehnquist join dissenting withdraws substantial measure power protect fetal life reserved roe wade reaffirmed planned parenthood central missouri danforth file dissent roe wade defined term viability signify stage fetus potentially able live outside mother womb albeit artificial aid point state interest protecting fetal life becomes sufficiently strong permit go far proscribe abortion period except necessary preserve life health mother obviously crafted definition viability care chose define term stage development fetus actually able actually ability survive outside mother womb without artificial aid point fetus potentially able survive ordinary usage words able potentially able mean thing potential ability actual ability ability xisting possibility actuality webster new international dictionary ed definition viability roe wade reaches earlier point development fetus stage doctor say assurance fetus survive outside womb background pennsylvania statute issue adopted district judgment entered insofar roe wade concerned pennsylvania defined viability language case potentially able live outside mother womb forbidden abortions stage pregnancy pennsylvania act however go far forbade entirely abortions fetus attained viability defined act fetus capability live outside mother womb albeit artificial aid stat tit purdon emphasis added state understanding also power roe wade regulate fetus potentially able exist outside womb also sought regulate forbid abortions sufficient reason believe fetus may viable language reasonably believed state equivalent meant term potentially able live outside mother womb abortionists must determine whether fetus viable also whether sufficient reason believe fetus may viable either condition exists method abortion regulated standard care imposed breach regulations exposes abortionist civil criminal penalties applicable live birth rather abortion intended original opinion judgment planned parenthood assn fitzpatrick supp ed invalidated two grounds first required determination viability term defined held unenforceably vague second section required determination fetus may viable thought regulate period time prior viability therefore considered invalid cases district disturbed fact opinion declared term viability used opinion roe wade hopelessly vague since understood opinion also given specific content term held state consider fetus viable prior week pregnancy concrete guidance may viable provision tend ed carve period time potential viability might cover period weeks gestation state unlawfully regulating second trimester sought enforce also invalidated section forbade abortions viability also fell challenge vagueness district judgment pending appeal planned parenthood central missouri danforth supra argued decided state act defined viability stage fetal development life unborn child may continued indefinitely outside womb natural artificial systems definition attacked impermissibly expanding roe wade definition viability mere possibility momentary survival argued proper standard cases also argued may language missouri statute vulnerable reasons may provision pennsylvania statute invalidated district case us brief appellants pp quoting planned parenthood assn fitzpatrick supra however rejected arguments sustained missouri definition consistent roe even read conjunction another section act proscribed abortions necessary preserve life health mother unless attending physician first certifies reasonable medical certainty fetus viable reached stage may exist indefinitely outside mother womb noted one appellant doctors particular difficulty statutory definition added missouri definition might well considered favorable complainants roe definition since point life continued indefinitely outside womb may well occur later pregnancy point fetus potentially able live outside mother womb went make clear proper function legislature courts place viability specific point gestation period flexibility term essentially medical concept preserved ibid plainly reaffirmed held roe wade viability refers stage development fetus actually capability existing outside womb also stage fetus may ability also reaffirmed time viability understood state power prohibit abortions except necessary preserve life health mother light danforth several aspects district judgment fitzpatrick case highly questionable judgment accordingly vacated remanded district reconsideration beal franklin drastically modified judgment eventuated term viability deemed vague hence definition term proscription abortions sustained district however conclusory opinion adhered prior view unconstitutional insofar related affirmance district judgment untenable district originally thought vague term viability vague scotched notion danforth district sustained pennsylvania definition viability necessarily nullified major reason prior invalidation incorporated supposedly vague standard district also said may viable standard invalid impermissible effort regulate period potential viability sole remaining articulated ground invalidating ground urged rejected danforth sustained missouri provision defining viability stage fetus may ability survive outside womb reaffirmed flexible concept viability announced roe affirming district many words agree district argues difficult know whether pennsylvania act simply intended state urges go roe permitted protecting fetus potentially able survive whether intended carve protected period prior viability defined roe district although otherwise seriously error trouble act understood may viable provision attempt protect period potential life precisely kind interest roe protected district erroneously thought state entitled protect danforth said reaffirmed roe respect unalterable determination invalidate pennsylvania act draw measurable difference insofar vagueness concerned viability defined ability survive viability defined stage fetus may ability survive seems affirming tacitly disowning may standard missouri law well potential ability component viability concept described roe constitutionally unwarranted intrusion upon police powers ii apparently uneasy work searched seized upon two additional reasons support affirmance neither relied upon district first notes failure make determinations required otherwise comply provisions subjects abortionist criminal prosecution laws pertain fetus child intended born aborted although concededly pennsylvania law criminal homicide conditions guilt upon finding defendant intentionally knowingly recklessly negligently caused death another human nevertheless goes declare abortionist successfully prosecuted criminal homicide without fault omission determining whether fetus viable may viable alleged lack scienter requirement says fortifies holding void vagueness seems incredible construction pennsylvania statutes district suggested nothing sort appellees focus entirely ignoring homicide statutes latter define specified degrees scienter required various homicides also provide ignorance mistake matter fact reasonable explanation defense homicide charge negatives mental state necessary conviction stat tit purdon given background see seriously argued doctor makes mistake whether fetus viable successfully prosecuted criminal homicide state submission address matter least something decide without hearing pennsylvania courts secondly proceeds find provision impermissibly vague particularly asserted lack mens rea requirement unable agree first place district found fault viability may viable provisions neither considered invalidated provision furthermore complaint expressly attack ground plaintiffs request findings conclusions challenged section grounds overbreadth vagueness viability may viable provisions request invalidate provision also plaintiffs brief dealt matter tangential way appellees took although argue matter brief merits question whether entitled still another provision pennsylvania act declared unconstitutional first instance thereby extent expanding relief obtained new york telephone event join determined attack pennsylvania statute case mistaken viability determination basis asserting lack scienter requirement prosecution violating provision agree state remotest chance abortionist prosecuted basis goodfaith mistake regarding whether abort respect abortion technique used substantial doubt complain lack authoritative state construction direct abstention permit state courts address issues light pennsylvania homicide laws courts much familiar federal iii although seems considerably narrowed scope power forbid regulate abortions reasonably expected enjoy roe danforth yet invalidated statute simply requiring abortionists determine whether fetus viable forbidding abortion viable fetus except necessary save life health mother yet ruled abortionist determination viability standard must final immune civil criminal attack sections pennsylvania law example remain undisturbed district judgment judgment done issue warning name vagueness attempt forbid regulate abortions chance survival fetus sufficiently large abortionist considers fetus viable edict constitutional warrant join district observed roe makes abundantly clear compelling point state interest fetal life may regulate even prohibit abortion week gestation fetus point recognized fetus presumably capability meaningful life outside mother womb consequently roe recognizes two periods concerning fetuses period prior viability state may regulate interest fetal life period viability may prohibit altogether regulate sees fit may viable provision section tends carve third period time potential viability planned parenthood assn fitzpatrick supp ed emphasis added unquestionably rehabilitating satisfy opinion far extensive difficult task state faced district ruling