(a) Location. The following area is a safety zone: All waters of the Rio Grande River, from surface to bottom, from 25°57′15.4″ N, 97°14′30.4″ W (approximately 0.5 miles east of the Massey's test facility), thence westward to 25°57′03.1″ N, 97°15′34.1″ W (approximate 0.5 miles west of the Massey's test facility). These coordinates are based on the World Geodetic System (WGS 84).

(b) Definitions. As used in this section, designated representative means a Coast Guard Patrol Commander, including a Coast Guard coxswain, petty officer, or other officer operating a Coast Guard vessel and a Federal, State, and local officer designated by or assisting the Captain of the Port Corpus Christi (COTP) in the enforcement of the safety zone.

(c) Regulations. (1) Under the general safety zone regulations in subpart C of this part, you may not enter the safety zone described in paragraph (a) of this section unless authorized by the COTP or the COTP's designated representative.

(2) To seek permission to enter, contact the COTP or the COTP's representative on VHF-FM channel 16 or by telephone at (800) 874-2143. Those in the safety zone must comply with all lawful orders or directions given to them by the COTP or the COTP's designated representative.

(d) Enforcement period. This section is effective from December 22, 2025, through February 28, 2026, however the regulations in paragraph (c) of this section will only be enforced during times when SpaceX conducts operations that involve explosive material. The COTP or a designated representative will inform the public through Broadcast Notices to Mariners (BNMs) and/or Marine Safety Information Bulletins (MSIBs) of the enforcement times and dates for this safety zone.