Types and sizes.

(a) Type. Life buoys shall be of the annular ring type as described in this subpart, but alternate arrangements meeting the performance requirements set forth will be given special consideration. (b) Sizes. Ring life buoys shall be of the sizes set forth in Table 160.050-2(b). A tolerance of a plus or minus 5 percent will be allowable on the dimensions indicated in Table 160.050-2(b). Table 160.050-2( b )—Sizes and Dimensions of Ring Life Buoys Size Dimensions (inches) Finished ring 30-inch 30 24-inch 24 20-inch 20 [CGFR 54-46, 19 FR 8707, Dec. 18, 1954, as amended by CGFR 62-17, 27 FR 9045, Sept. 11, 1962]