Fairbanks - Carbon Monoxide
Background
The urban portion of the Fairbanks North Star Borough (FNSB) was designated in 1990 as a nonattainment area for carbon monoxide (CO).
A new plan was submitted on August 30, 2001, and EPA approved the plan on February 4, 2002 (67 FR 5064 (PDF)(6 pp, 151 K).
The State of Alaska submitted a maintenance plan and redesignation request on June 21, 2004. EPA approved (69 FR 44601 (PDF)(7 pp, 166 K) the plan and redesignation to attainment on July 27, 2004.
The State submitted three revisions to the Alaska SIP relating to the motor vehicle inspection and maintenance program in Fairbanks:
- A March 29, 2002, submittal containing minor revisions to the statewide I/M program.
- A December 11, 2006, submittal containing more substantial revisions to the statewide I/M program.
- A June 5, 2008, submittal containing major revisions to the statewide I/M program discontinuing the I/M program in Fairbanks as an active control measure in the SIP and shifting it to a contingency measure.
EPA approved the revisions on March 22, 2010 (75 FR 13436 (PDF)(6 pp, 159 K).
On April 22, 2013, the State of Alaska submitted the Second 10-Year Limited Maintenance Plan (LMP) for the Fairbanks, Alaska CO area. The area qualified for an LMP because the second highest 8-hour CO concentration for the Fairbanks area for the most recent 8 quarters (2011-2012) was 3.6 ppm, which is significantly below the LMP Option requirement of 7.65 ppm.
The EPA approved the LMP on August 9, 2013 (78 FR 48611 (PDF)(5 pp, 264 K).
Source: United States Environmental Protection Agency.
On September 27, 2024, Fairbanks completed its CO 20-year maintenance period. In the letter received on October 29, 2024, the EPA noted that as of September 27, 2024, Fairbanks Area Surface Transportation (FAST) is no longer required to address the transportation conformity requirements of 40 CFR part 93 for Fairbanks CO area.
However, other provisions of the second 10-year maintenance plan continue to remain in effect and all measures and requirements contained in the plan must be complied with until the state submits, and the EPA approves, a revision to the State Implementation Plan consistent with the anti-backsliding requirements of CAA section 110(l) and CAA section 193, if applicable. Furthermore, the maintenance requirement in CAA section 110(a)(1) remains in place for all areas, including attainment areas.
Maintenance Plan (SIP)
Graphs
Memorandums
Projects By ADEC
Maps/Monitoring Plans
Control Measures
Fairbanks North Star Borough Website Links
Note: The I/M Program in the Fairbanks North Star Borough was suspended January 1, 2010: Information regarding the suspension
Indicates an external site.