Minnesota (Part 63) MACT Standards Delegations

Clean Air Act Section 112 Major and Area Source Standards

EPA's final delegation approval of Section 112 NESHAP standards for Minnesota constitutes a program of straight delegation of all existing and future air toxic standards regardless of a source's Part 70 (Title V) applicability, with the exception of Section 112(r).

Minnesota has the authority to adopt Federal air quality rules simply by referencing the Code of Federal regulations, the Federal register, and other publications deemed appropriate by the revisor of statutes (Minn. Stat. § 14.07, subd. 4). In addition, any subsequent amendments are incorporated by reference without further rulemaking (Minn. Stat. § 645.001; Minn. Stat. § 645.31, subd. 2).

Minnesota Pollution Control Agency (MPCA) has been granted delegation authority to implement existing Section 112 standards and EPA will automatically delegate the authority to implement any future Section 112 standards upon the effective date of the promulgated standard. MPCA has been granted delegation authority to enforce for Section 112 standards once the Federal standards have been adopted and incorporated by reference into Minnesota state air quality regulations.

Currently, MPCA has relinquished delegation authority for implementation and enforcement of Section 112 standards for non-part 70 sources (area sources of HAP). Visit Minnesota NSPS and NESHAP delegation page for additional documents.

Federal Register Documents for Approval of Section 112 (l) Program of Delegation

• Direct Final Rule: Approval of Section 112(l) Program of Delegation; Minnesota (67 FR 48036) (pdf) – July 23, 2002

Memorandum of Agreement, Delegation Request, and Other Historical Documentation

• Minnesota Delegation Approval for 40 CFR Part 63 Subparts IIII, DDDDD, IIIII, and UUUUU (pdf) (559.04 KB, Feb. 8, 2018)
• Minnesota Delegation Clarification Regarding Performance Testing (pdf) (1.66 MB, June 7, 2013)
• Minnesota 112 (l) Delegation Approval (pdf) (435.32 KB, Feb. 10, 2009)
• Minnesota 112 (l) Delegation Request (pdf) (7.33 MB, October 9, 2008)
• Minnesota 112 (l) Memorandum of Agreement - 2005 (pdf) (4.26 MB, Feb. 15, 2005)
• Minnesota 112 (l) Amended Delegation Request - 2001 (pdf) (52.34 KB, July 26, 2001)
• Minnesota Commitment to Straight Delegation (pdf) (2.01 MB, Dec. 12, 1995)
• Minnesota 112 (l) Delegation Request 1995 (pdf) (905.17 KB, March 30, 1995)