- (a) For the purpose of this chapter, unless otherwise specified all references to 23 CFR 450 shall be to the April 1, 2018 edition.
- (b) For the purpose of this chapter, unless otherwise specified all references to 40 CFR 93, including any subpart thereof, shall be to the July 1, 2018 edition.
Source. (See Revision Note at chapter heading for Env-A 1500) #9999, eff 10-1-11; ss by #12975, eff 1-18-20