(a) For each newly erected or constructed 1-family and 2-family dwelling, mobile home, modular home or townhouse listed in § 6631 of this title, the compliance date shall be July 8, 1993.
(b) For all existing 1-family and 2-family dwellings, mobile homes, modular homes or townhouses listed in § 6631 of this title, erected or constructed prior to July 8, 1993, the compliance date shall be July 1, 1994.
(c) For all other residential occupancies listed in § 6633 of this title, constructed after July 8, 1993, the required smoke detection devices and/or smoke detection systems shall be installed at time of construction.
(d) For all other existing residential occupancies listed in § 6633 of this title, newly erected or constructed prior to July 8, 1993, the compliance date shall be July, 1, 1996.