46 C.F.R. § 111.12-3 Excitation.
Title 46 - Shipping
Excitation must meet sections 4/5C2.19.1, 4/5D2.5.1, 4/5D2.5.2, and 4/5D2.17.6 of the ABS Rules for Building and Classing Steel Vessels or, for a mobile offshore drilling unit, section 4/3.23 of the ABS Rules for Building and Classing Mobile Offshore Drilling Units, except a static exciter must not be used for excitation of an emergency generator unless it is provided with a permanent magnet or a residual magnetism type exciter that has the capability of voltage build-up after two months of no operation. [CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28277, June 4, 1996; 62 FR 23908, May 1, 1997]
Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.12—Generator Construction and Circuits
§ 111.12-3 Excitation.

