If an area can demonstrate 8-hr conformity during the grace period, do they still have to meet the 1-hour conformity requirements?
Yes. You have to continue to meet the 1-hour conformity requirements until the 1-hour standard is revoked if a 1-hour conformity determination is required (e.g., new or amended transportation plan or TIP, or a conformity trigger for the 1-hour standard under 40 CFR 93.104(e)). EPA decided in its April 30, 2004 8-hour implementation final rule (69 FR 23969, available at http://www.epa.gov/fedrgstr/EPA-AIR/2004/April/Day-30/a9153.htm) to revoke the 1-hour ozone standard one year after 8-hour nonattainment designations become effective, which coincides with the end of the grace period provided in the Clean Air Act.
Related Questions
- What happens to the ATM fee refunds I received during the month if I do not meet the requirements within the statement period?
- If a Compact area is designated nonattainment under the PM2.5 standard, do they have to meet conformity requirements?
- Is there a grace period for completing renewal requirements?
