transit
(d) Permission to enter or transit. (1) The COTP may set ice conditions, as defined in paragraph (b) of this section, for any zone described in paragraph (a) of this section, or a portion thereof, and announce those conditions via Broadcast Notice to Mariners and other methods described in 33 CFR 165.7. Steel hull vessels prohibited from entering or transiting a safety zone under paragraph (c) of this section may nonetheless enter or continue transiting the safety zone without contacting the COTP if the vessel is a public vessel or the COTP has set an ice condition for the safety zone and the vessel meets these restrictions: (i) Ice Condition One. Only steel hull vessels may enter, operate in, or transit though a safety zone when Ice Condition One has been set for that zone. (ii) Ice Condition Two. Only steel hull vessels with a 1,500 minimum shaft horsepower and a main engine cooling system design that prevents blockage from ice, may enter, operate in, or transit though a safety zone when Ice Condition Two has been set for that zone. (iii) Ice Condition Three. Only steel hull vessels with a 1,500 minimum shaft horsepower and a main engine cooling system design that prevents blockage from ice, and that are part of a vessel convoy, may enter, operate in, or transit though a safety zone when Ice Condition Three has been set for that zone. These vessels may only transit an Ice Condition Three zone during daylight hours. (2) Vessels prohibited from entering or transiting a safety zone under paragraph (c) of this section may request permission to enter or continue transiting by contacting the cognizant COTP on VHF-FM channel 16 (156.8 MHZ) or via telephone, as follows: (i) COTP Delaware Bay: 215-271-4940. (ii) COTP Maryland-National Capital Region: 410-576-2693. (iii) COTP Virginia: 757-483-8567. (3) Vessels granted permission to enter, operate in, or transit though a safety zone must do so in accordance with the directions provided by the cognizant COTP or designated representative. (4) Vessels may transit within protected waters to facilitate icebreaking operations and protect infrastructure and property without COTP permission.