This chapter is intended to supplement State law, and compliance with this chapter shall not excuse any person from compliance with appropriate State law and regulation. ( Pub. L. 97–470, title V, § 521 , Jan. 14, 1983 , 96 Stat. 2599 .) Statutory Notes and Related Subsidiaries Effective Date Section effective 90 days from Jan. 14, 1983 , see section 524 of Pub. L. 97–470 , set out as a note under section 1801 of this title . CFR Title Parts 29 500