§161.013-7. Signal requirements.

46 C.F.R. § 161.013-7

(a)

An electric light must have a flash characteristic of the International Morse Code for S-O-S and, under design conditions,

(1)

Each short flash must have a duration of 1/3 second;

(2)

Each long flash must have a duration of 1 second;

(3)

The dark period between each short flash must have a duration of 1/3 second;

(4)

The dark period between each long flash must have a duration of 1/3 second;

(5)

The dark period between each letter must have a duration of 2 seconds;

(6)

The dark period between each

(b)

The flash characteristics described in paragraph (a) must be produced automatically when the signal is activated.

Notes, amendments, and revision history

Source: CGD 76-183a, 44 FR 73054, Dec. 17, 1979, unless otherwise noted.

Authority: 46 U.S.C. 3306, 3703, 4302; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4.