TECHNICAL CORRECTIONS TO CLEAN AIR ACT
                     OPERATING PERMITS RULE
                        40 C.F.R. Part 70

                          July 2, 1992

The following is a summary of the technical changes EPA made to the version of the
Clean Air Act operating permit program rule signed on June 25, 1992.  These
corrections are designed to correct mistaken cross-referencess, clarify the intent of the
June 25, 1992 rule, and make the format of the regulation consistent.  The page numbers
below refer to the pages of the June 25, 1992 rule as it appears in the EPA Air Docket.

Preamble

50        Added sentence clarifying that EPA's rulemaking under section 112(g) of
          the Act will determine the procedures for incorporating the requirements
          of 112(g) into operating permits.

98        Added sentence explaining the provision in the rule regarding the source's
          obligation to keep records of "off-permit" changes. 

107       Added sentence reaffirming the point described above, on page 50 of the
          preamble.

160 - 161 Conformed preamble to the rule by deleting phrase suggesting that the rule
          requires a comment period for minor permit modifications.

162       In second full sentence, changed "EPA may well conclude . . ." to "EPA
          concluded . . .."

173       In second full sentence, changed "Congress awareness and implicit
          ratification . . ." [sic] with "Congress endorsed this . . .."

186 - 187 Clarified that the rule requires an opportunity for EPA and affected state
          review of permit modifications.

200       Clarified that EPA may object to permits where the permit is not in
          compliance with the applicable requirements of the Act or the
          requirements of the operating permits rule.


Regulation

266       Clarified that paragraph (5) only requires information in the permit
          application to implement and enforce the applicable requirements of the
          Act or the requirements of the operating permits rule.

269       Clarified that paragraph (iv) requires the source to indicate its compliance
          status with applicable enhanced monitoring and compliance certification
          requirements of the Act.

272       Clarified under paragraphs (ii)(A) and (B) that sources must keep copies
          of required monitoring.  Removed mistaken cross-references at the
          beginning of paragraphs (ii) and (iii).

276       In paragraph (10)(ii), corrected the format for the cross-reference to
          section 70.6(f).

279       In paragraph (5)(ii), clarified that permits must include the monitoring
          established under section 70.6(a)(3) of the rule.

284       In paragraph (3)(iv), corrected the cross-reference in the second sentence
          from paragraph "(a)(3)(iv)(B)" to "(a)(3)(iii)(B)."

285       In paragraph (ii), clarified that group processing procedures under section
          70.7(e)(3) (a subset of section 70.7(e)(2)'s minor modification procedures)
          need not include public participation procedures under section 70.7(h).  In
          paragraph (iii), clarified that all permit modifications are subject to
          affected state review under section 70.8(b).

287       In paragraph (b), corrected the format for the cross-references at the
          beginning of the first sentence.

293       Added "whichever is first" to first sentence of paragraph (iv).

297 - 298 In paragraph (4)(i), clarified that the significant modification procedures
          are the residual category for all changes that do not qualify as a minor
          permit modification or an administrative amendment.

302       In paragraph (2), corrected the cross-reference from section
          "70.4(a)(3)(viii)" to "70.4(b)(3)(viii)."

312       In paragraph (d), added language inadvertently omitted from rule to clarify
          EPA's authority to ask for a periodic accounting of how fees are used.

319       In paragraph (iii), clarified that state programs must provide for criminal
          fines for knowingly false material statements, consistent with section
          113(c)(2)(A) of the Act.
                                                       PMTTECH.CO2