46 C.F.R. § 34.25-1 Application—T/ALL.
Title 46 - Shipping
(a) Where a water spray extinguishing system is installed, the provisions of this subpart, with the exception of §34.25–90, shall apply to all installations contracted for on or after January 1, 1964. Installations contracted for prior to January 1, 1964, shall meet the requirements of §34.50–90.
Title 46: Shipping
PART 34—FIREFIGHTING EQUIPMENT
Subpart 34.25—Water Spray Extinguishing Systems, Details
§ 34.25-1 Application—T/ALL.

