ML19317E746

Notice of Issuance of Proposed Amend to 10CFR20 Re Control of Internal Occupational Exposures to Radioactive Matls, Including Provisions for Use of Respiratory Protective Equipment

ML19317E746
Person / Time
Site:	Oconee
Issue date:	11/29/1976
From:	Chilk S NRC OFFICE OF THE SECRETARY (SECY)
To:
Shared Package
ML19317E742	List: ML19317E741 ML19317E746
References
NUDOCS 7912180901
Download: ML19317E746 (3)

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RULES AND 110ULATIEN5 i-3 300 et a related manual of respiratory pro-tecuan assinst rad:oact:ye mater:21s was also announced in the nouce of proposed ruJe mak:ng.

Interestet persons were invited to sub-mit written comments or suggtsuons for the consideration in connection with Beoposed amendments by Ocicher ".1974.

and the comment perted was estended.

upon request. to November 6.1374. In additica copies of the draft guide and manual were provided in response to re-ttuests.

t hmtng and related regulatory func.

tions of the AEC wede transferred to the NRC pursuant to sectics 231 of the En-ersy Reorgani:stion Act of 1974.

After consideration of the comments ruceived and other considerations, the Nuelcar Regulatory Cne m m e has d

adopted the proposed amendments to j

Part 20 pub 11shed ior com=ent, with est-tain clar:!ytag mod 1*.cator.s and ed2to-2121 shanges. O.e more important changes, based largily on the comments received, are summar*. ed as foLIows:

f ance the limits on exposure to air-borne radioscuve materials are now ex-a pressed in tern's of intake of such =ste-rials into the body. it was suggested that reference bs made in the mulaucs (120.103(a) (1) ) to some s*4dard :ed bases for estimating t= tate. Accorcir. gly.

the efective rule includes a reference to l

an NRC Regulstcry Guide on acceptable concepts, models, equat: ens and assu=p-tions !or a blomat17 program (Resuistory I

I' Oulde 8.3),

The intake luni'J for certain tr.1xtures of uranium in soluble fcfm (1:0.103(a) 1 (2)) have been changed to conform with those adopted by the Atomic Energy

,j Commission on July 29,1974 C9 2*N 23390).

rhtees may, under the senended regulation. crd!=arily control czpo-ures

• to mdioact:ve materials in much the same way as they do under the rezuis-tion belore amendment. For example. II from measured concentrations of radio-active matenals in air, and from gen-erally known wort patterns and stay-times in airborne radioscurity areas. :t "t.

can be ascer*.ained that no exposu.e of an Individus! :n escess of the quarterly

,a limit could occur.1:dividu21 estimates ofr p

intake of radicactive matertsi would co.

be reouired. In those ca. u= nances (g

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where the 11ctrsee f.nds it necessary to ht!e 10--Energy maintain Individuahzad records of in-l CHAFTIN f--NUCt. EAR RESULATCP.T take estimates. a requ:rement to reecrd j

very small asse<enents of intake ecuid COMMISSION ln l jq FART 20-STANDARDS FOR PRUTICT:CN result in burdensome and unnecessary AGAINST RACLATICN recordkeeping. ':'o avoid sut:5 a require-

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Exposure of individuals to Concentrations ment the efective regulaskan has 'been hd so t%t assment of mdd

}i of Ratsloacuve Matenata in Air in Re clar' stricted Areas intakes less than spec:f.ed amounts ceed Cs Au:ust 21.1974 f33 FR,30164) the not be included la such recod.s O *C.103 Atomic Energy Comrnission put!!shed m is) 3)). I.!censees might. of coune.

the FzsssAr. arcts:ta ; reposed amend. maintain notes of :ndividual entry into ments to 10 CFR Part :0 concernmg con-Airborne rsdicactivity airsa througn trol of internal occupational exposures

".,w,ork permst" or s mtlar means. for p l

to rad!oactive mater:Als includinz pro *

• e,, 3y,3,, g3,gg n,,g,eggy,3,33 er

I vinen for use ci rescitatory pr:tect:ye vt. -

IAcility of d*bita Gf rest:ratory protectten ;r; 2==

ettu1Dr90%. D.e EV3 a re:.tri retuistory ;u:de en seceptr.t!e out estignating intakes ami n:aL*ttammE programs IQr rtspir2 tory protection and QO Ft. ts41 etstiftL VOS. 4t. NO.1:o--JdCNC&Y. f.*CVtM&(e 29,19r i

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52301 Butts AND TECULATIONS 7

E When it-ts !=practicab12 to apply

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messe, matertal for 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> per weet for process or,other engineerms controis to l

lunst concentrations of radsoscure ma-andtv6eust sanake romeres unless they 13 weets at uniform concentracons spec-TsDie I. Column 1.

tertal in air below those defLned in geene counmenters were concemed that Mied in Appendiz 3.Q1 No licensee shall possess, u i 20. 03(d)(1)(!D. other precautionary were needed.

transfer mixtures of U-234. U-235, and procedures such as increased surveil.

Itaculatory Outde 8.15, which is rater.

i 8 in soluble form in such a manner lance. Unutation of work 2ng times, or acced in the amended i 20.103ic),mighthe changed without suf!ctent nouce to U *:

as to permit any tndividual in a restric*.e:1 provtsson of respiratory protective eaufp-

)*aaaaa-a, Changes to the s'. tide would ares toinhale a quanuty of such material ment, shall be used susult to a redaung or renumberms of in eacess of the intake 11mJts spectfied in of radioactoe matert Column 1 of this us! within any period of seven consec-the guide witn sporopriata chacces to I J0.103(c) including prior public notice Appendit B. Table I.

I l bl uranium is of a form uttve days sa far below that intage of and pentadures thereof in the Ftoans. part.If such so u e u through the st*n is racloacuve matartal which wou!d result i

Ras:sTsa.In addluon. a draft of Regula such that absort onlikely, Individual exposures to such ma the uniform concentratic.s tenal shall be control!ed so that the up-tory Ouide 3.15 and its associated man-hours at h matersal by any organ from spectf.ed in Appendix B. Tahle 1. Col.

Ital were noticed wtth subucas:en of thepeoposed rule and made availaWe for tate o as is reasonaMy achievable.

either inhalation or absorption or both umn 1 Whenever the intale of radioactive ma.

,asamar,t eetn before adopf.fon of the routes of Intaas* does not exceed that tanal by any indfridual exceeds this 40-Inhaling such rule to allowance for parucle size in de. material at the limits sWhn hour control nicasure. the ucenses sha3 peci$ed m Ap-m2t procedurts.

pendia 3. Table 2. Column 1 and footnote make auch evaJuations and take such act ens as are necessary to assure termming exposures to airborne radio, For pu.-poses of detarmining ecm-agmnst recurrence. The licensee sha!!

4 thereto, estivity.Ucensees may continue to apply mamtam records of such occurrences.

(3)

Dllance with the requtrements of *.his sec-for an esception for such snowance un.

evaluauons and settons taken in a clear tion the Ucensee susu use suatable a2ess-and 'readi:y identdable form suttable der the provtsions of I 20.501. Pursuant to the Atomic Energy Act of ure=ents of cencentraticas of radioac-t:ve matenal: in air for detecting and for summsty review and evaluatten.

1A34. as amended, the Energy Reorts 1 svaluaung airborne radioactavity m re-ses When resstratory pre:rcure nat!on Act of 1774, and sect)ons 55: and equipment is used to limit the inna!

stricted stesa and m additton. as appro-SE3 of the United States Code, the fol-W.ata. shall use mesements of radio-a the body. measure"tnis of lowing unendment to T:tle 10. Chapter pu*suant to parsg*20h to) W of this

1. Code of Federal Regulations. Part 20.activity radlosct1Y3ty escreted from the body. Cr seetton, the licer.ses may ctate allow-k gyubMshed as a document subject to any cozobina*. ton of such measurements 2nce for such use in e%'. mating eCo. din such "ater:als as may be necessary for timely dete:Uc3 sures of '* hat such equipment is used tod10 cation.L Section 20J03 !s amended *4 W

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and assessalent of individual intales of provided t gg gggggg.

radioacurity by exposed indinduals. It a.s stipulated m Resulatory Guide 8.15.

Erperere of tmiivideak to con-is assumed that an individual inhales

. Acceptaste. Programs for Respirato:7

$30.103 sentrauona of radioactive materials radioacuve mater:al at the airtorne con.

ha sie in restricted arema-centration in vehich he is present unless Notx:thstancmg the prevmcas of p ne,...en (a)TI) No Ucensee sha!!==*** use. he uses respiratory protecure ecut;=ent *arsgraphs abl and (c) ic)

Wm Nc~5 of this se of tats sec-pursuant to paragraca (c)t:en. When aJsessment of a parucular b e. C.

er transfer Ucensed matedal in such a W

usanner sa to permit any ind!r:dusJ in s individual's intake of radioacuve ma-g n

rescieted ares to inhale a cuantty of (1) Cn the ex*.ent to whi:h a censee j tertal is necessary. intakes less than these may make allou sn t. t use of ress radioactive matertal in any period of 32tc.*2 would result frem '-halaten for tors in lieu of pronsson of ; recess, cen one eslandar quarter greater thsn the 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in any one day or fer 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br /> Ittientity which would result from mha.

weejc for 13 weers in any one n 1 at unifom cencentra, tainment, venttlat:cn. cr other ent.ne at uniform concentrations of rsdlesctive tacns speeded in Accendia S. 'Pahle I.

ing controls. If ag;Ucation cf such con.

j lation for 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> per ematerial in air spect. ed in Accendix 3. Celu=n 1 neet not be included !n such uch u found to se praed:sh and I

m As mists be necessar7 to assun amssment. prended that for any assess.

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. hble I. Calumn 1."' If the radioactive that the resmratcry prc= tive pregram 3satarf al is cf such f:rm that intale by mest :n exenss of these amcunts the en-cf the H:enm *.s ade uate in 11= Mar l W tart amountis included.

an.orpeon e.:ush the st:n is uneiy. in-

@ W Mcem shsH. as a :nctu. eccsures of penennel to airborne n.

dividual sa.v..s to tsd!cacute mate, tionary procedura. use ; roc-ss or other 4

dicact:ye =atertals.

etal shaII be rentrolled so that the up, L

eng neer:st centr-1s. to the extent prac.

fe) ;?.e Ucensee shs3 notify. in T-! -

take of radioactive mater'al by any or-1 Saa front either Inhalanen of absorgten UcaMe. to umit.ortcentrattens of radfo- !ng. the Oirector clear Regy.!stcry Commission Ins se to levels th or both routes of Intate ** in any calen-acute materials 1*:

E those which denmit an tuborne radio-dar quarter does not exceed that wnich In Appendix 3 at least 30 d2ys Detcre the would result frasa inhaung such radio, activity tres as def.ned in 100.*03(d)(1) f date tha.t respiratcry pr:teceve e

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= =.rine vape, -a m e e m inistee.t*

_e ssentscant stare by insntion er tafee-of this secuen. who iss autheri:ed to

• mace the coanucanos sree see for trt l

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ties is prevunee to occur o=ar na a resu;t at 'f 7 A licensee utta ateorsuon and tanalat:en. tae totaz malte grosang; for use of respirstcry cateu:ns.ances suca u mercent.:aneter.ance.

tataae portattted to tvtee tant enica wouts

,I protecuve equ2Cment priCr to Oecem=

post procedure, or Samalat s;* cal ecncttler.a.

4 ruuss troca tanniauen alone at tne concen-

!, C and ac' auca antases 2tust be eval *2ated Wellee W*ed for 3 3 313 Appendts 3.

ber 29,1378 tery prmcun pnmm into contem-eosasse for by teenasques ans ;rocedures a*

Table L Catamrt 1 for to 30urs per weet !cr mar Se aepropr:Me to the c:rrn.stanne ofthe occur-ecae. Ezo

,7 13 weems.

matertala deettssted one whether tse of this secti:n

s. thin

' Per taatometree de taelueee in cete-=uning g7sch (c)

" ten

• ta tae -tamispe-Caauma of tae tante.

the neoemetrauce esius spectand is taaes umstauon on tadsetauai esameures in I:o.- year of that date, and l

spin espesure to sne matettaa a as n:ernes tossault hee been neeeced.en assessment et -' Di s'tecu:stery cuteance

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toft-taste:ausa nocoutua to fr4tvidual intamos of note,neuve matettal ta tadtmuen soares.

i Fet-sneen matertats mar se accountee tot as pars steen ta Reculasary Cusce aA Actettacle $143 was accrowed bv the Directo s*st.t done la Cete er ;3. ttM.

tae !!anstatten on tactr* dual C:ceveta. Moneta. Equauons and Assurip-eral Rectster ort i

coews of ne:uisto-r Cuade s :s are se f 20.let. ybase materte&s $312 de suelect to et tions for a Ricassat Proeram.* stante copicsm ara::a:Je from to etce 'ot frem tar Cla j

tDe precautionary procedures requires 3r neculatory Carnmwson. S.

or vnte9 Det ee..mt. 7 3. Nue!sar Repa. C s. Nuetras 5 20 toSIDi(11.euutup;e tae canevntrsuen en::es r:eet.

See la appenant R. Tnnie L comma 1 ty ;a:cfr C:=:=sunen. Tuaangtsa. Q.C. to Lagten. D C. : ossa. upon writica reguc~tt i

standa.et sss.

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44 it 10* saa to estaan t3e quarter r quat.: - upon wrntea request.

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11515:14. YOt. 41. NO. 23s==MCNDaY. MOVtMate 19.19 i

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I RULES AND REGULATIONS i

52002 the requirement of paragraph (el of with a copy to the appropr:Stc Nuclest exposure as4cquired by parscranh (bi Reculatory C m.mimon Inspection and of tr'is section; Icvels cf rad:atson and this section.

Enforcemtnt Re tonal Of".cc 1:sted :n concentrattens of rad.;oactive matenal Append 2x D of 81) each exposure of an involved; the cause of the exp sure.

. In I.0.104. parac sph (c) 13 revtsed :ncludual to reds -** in excess of the levcis or concentrations: and corrective J.

to re:d as follows:

appl:catic limits. In t,.0.101 or 20.104 steps taken or planncd to assure aca:nst 1l

$ 20.10& Emposure of niinori.

(a) or the 1 cense; (:' each exposure a recurrence, t

of an :ndividual to rad: active matenal e

e e

(c) The provistens of U 03.103(b> f 2; in excess cf the apptica:Ic ljmats in Ef"cetive date. These amentnents te.

l} :3. 03 a)(1). 20.103 tan t21.3.104(bs C..,.' Cg,,,", n on,o cu,,,o,.,c.,,.3.,6 9 5 and 20.103(ci shaII 3: ply to expcsares or t*.e license * (3 levels of rad:st;on er tsees.13. 63, et.103.104, 1st b er.d c.

subject to paragra;;h its of thu sect:en concentrat2cns of rad:cactive material j

except that tne reic?cnces in !!:0.103

u. a restricted area in excess of any Pue t 33-?c3. $s-4as. 91-sco, ca sa: vac.

+

(b)(2) anc 23.103cci to Append 2x B.

c:her applica ;e I;mit in the lietnse: '48 333, 933. 937, 948-549. 70 stat. loca. is scas Tabic I. Cc;umn i sha:1 te deemed to t;e any *:2: ent for wh:ch neunestion as re-oc2. 84 stat. It:2. se stat. 4?s.42 t; s c.

references to A;;ena:x S. Tab.e 1. Col.

cuared by 123.403; and e5s levels of ra-sc7:. 2032. 21:1. ::23. :13t. 221::: see :::.

urnn 1.

d2aticn er concentrauons of radioacuve Pun 1 93-438 sa stat. 1:42 (4: tLS.C.

(3) In i 20.405, parag sph (al is re.

material (RhCther or not involCng ex. 3g4g33, Ytsed to read as IcIlows:

cessive expcsure of any individual) in Dated at Washington. D.C. this 23rd 11cports of avere,p.i.ur,* and an unrestt:cted area in excess cf ten

$ 20.40 cacessive lesels and eoiventrations, any @Me lht set in m du of NmcM 13%

.3 or the Nu.,iear Re,atcry Co 1:,

(a) In aditien to any not ".cauen th:s part er in the !! cense. Each report r

required "*y 1 :0 4G* e-'*4 li- ""n*ce s"".requ: red under this paragraph sha.I de-sicn.

J Sat:tr. v,. C*rrax.

make a 'cDert in xt:t::: sat. a 30 days ser :e the extent of exposure of persens Scirciarr ol !!!c Com:.tss:o*t.

to the Director. CT: of I.:pc:t::n and to rad:sta:n or to radioactive mater:11.

Enf orcement. 0.5. Nue: car Reg.:atory tr.cluding esti=ates ci each Indiv: dual's

!?R.bc.75-33131 rued 11-26-?s:s-43 aml Carnntission. Wa.st:ncien. D.C. 20555.

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ftDteat etcastra, vot. 41. No. 22McNcAf. MCvtMate 29 Mrs l

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