46 C.F.R. § 153.955 Warning signs during cargo transfer.
Title 46 - Shipping
(a) When transferring cargo while fast to a dock or at anchor in port, the master shall ensure that the tankship displays a warning sign at the gangway facing the shore so that it may be seen from the shore and another warning sign facing outboard toward the water so that it may be seen from the water. (See figure 1). (b) Except as provided in paragraph (f) of this section, each warning sign must have the following legends: (1) Warning. (2) Dangerous Cargo. (3) No Visitors. (4) No Smoking. (5) No Open Lights. (c) Each letter must be block style, black on a white background. (d) Each letter must: (1) Be 7.5 cm (approx. 3 in.) high; (2) Be 5 cm (approx. 2 in.) wide except for “M” and “W” which must be 7.5 cm (approx. 3 in.) wide and the letter “I” which may be 1.3 cm (approx. (3) Have 1.3 cm (approx. (e) The spacing must be: (1) 1.3 cm (approx. (2) 5 cm (approx. 2 in.) between words; (3) 5 cm (approx. 2 in.) between lines; and (4) 5 cm (approx. 2 in.) at the borders of the sign. (f) Except as described in §153.1045, the legends “No Smoking” and “No Open Lights” are not required when the cargoes on board the tankship are neither flammable nor combustible.
Title 46: Shipping
PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS
Subpart C—Operations
Cargo Transfer Procedures
§ 153.955 Warning signs during cargo transfer.