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§61.20 coverage by a standard that applies pulp to operaGlons larger than a epecf- fied sire. 190 FR 98388. Oct. f4. 1875- Redeaignsted at SD FR 4@94, Nov. 7, 19851 $Ub(X1rf B~--PIOdOlltll Et11~Or1 $~drldprd6 tOr QCdWI ERi155)Of16 From Urlder4Fo9eld Uranium 11111n8S Sooacs 54 FR b1899, Dee. lb. ]989. unless otherwiee noted. 461.80 Ileeigaation of fac94ffea. The provisions of Lhia subpart are ap- plicable to the owner or operator of an active nnderglronad aranfnnl mine which: (a) Has mined, will mine or is de- signed to mine over 90.720 megagrams (Mg) (100,000 tone) of ore during the life of the mfne• or (b) Has had or will have an annual ore production rate greater than 9,072 84g (10,000 tone), nhless ft can be dem- onstrated to EPA Ehat the mine will not azcaed total ore production of 90,720 1198 (100,000 tons) daring the life of the mine. [64 FR 51694, Dec. ]5, 1989. as amended at 65 FR 82161, Oct. 17, 200D) 461.8Y ILe6nitiom. Aa used m this subpart, all terms not defined here have the meaning given them in the Clean Air Act or subpart A of part 61. The Wllowing terms shall have the following epeCiffc meanings: (a) Active mfne means an underground uranium mine which is being venti- lated to allow workers to enter the mine for aqy purpose. (b) Elective dose equivalent menus the cam of the prodnote of the absorbed dose and appropriate effectiveness fao- tors. These factors account for dif- ferences mbiological afteativenese due to the gaalitp of radiation and ire dis- tribatioa in. the body of reference man. The unit of the effective dose equiva- lent fa the rem. The method for calca- lating effective dose equivalent and the definition of reference man are out- lined 1n the International Commission On Radiological Proteotioa'e Pabliaa- tion No. 26. 40 CFR d1. l (7-1-01 Editbn) (c) Underground uranium mine means a man-made underground excavation made for the parposa of removing ma- Lerlai cohtairiing uranium for the prin- cipal purpose of recovering aranimn. [54 FR b1899. Dec. 15, 1989. ss amended at 66 FR 63151, Oct. 17, 20007 $61.8$ Standard. Emissions of radon-22'd to the ambi- ent air from an underground araninm mine shall not exceed those amounts that would canes anp member of the public to receive in anp pear an effec- tlve doss equivalent of 10 mlem/p. 461.88 Ikfemining compliance. (a) Compliance with the emission standard in this subpart shall be deter mined and the effective dose equivalent Calculated by the U.S. Environmental Protection Agenep (EPA) computer code COMPLY-R. An underground nra- ninm mine owner or operator shall cal- onlate Lhe source terms to be need for input into COMPLY-R by conducting testing m accordance with the proce- dnn9s described in appeadia B, Method 115, or (b) Owners or operators map dem- onetrate compliance with the emission standard in this subpart through the use of computer models that are equiv- alent to COMPLY-R provided that the model lies received prior approval from EPA headquarters. EPA map approve a model in whole or is part and map unlit its use to specific efrenmstancea. [59 FR 61894, Dec. 1b. 1989, as amended at eb FR 621b1, Oct 17, 7fa07 461.&1 (a) The mine owner or operator shall annnalip calaalate and report the re- snlte of the compliance calenlatione in 561.23 and Ghe Input parameters peed in making the calculations. This report shall cover the emieeions of a calendar pear and shall be sent to F,PA by Maroh 31 of the following pear. Each report shall also mclnde the following information: (1) The name and location of the mine. (2) The name of the person respon- eible for the operation of the facility and the name of the person preparing the report (if different). 30