45 CFR § 98.17
Period covered by Plan
April 14, 2021
(a) For States, Territories, and Indian Tribes the Plan shall cover a period of three years.
(b) The Lead Agency shall submit a new Plan prior to the expiration of the time period specified in paragraph (a) of this section, at such time as required by the Secretary in written instructions.
[63 FR 39981, July 24, 1998, as amended at 81 FR 67578, Sept. 30, 2016]