The Ilocos Norte-class patrol boat is a series of four vessels in active service of the Philippine Coast Guard.

[4] An option for a follow on order of ten more ships was offered by Tenix, but not used by the Philippine Coast Guard.

[5] On December 24, 2009, BRP Nueva Vizcaya (SARV 3502), along with BRP Pampanga (SARV 003)and MT Tug Habaga (TB-271), was deployed to Cavite to conduct search and rescue operations when MV 'Catalyn B, a wooden hull motorized vessel collided with the fishing vessel FV Anatalia and sank 2.8 nautical miles (5.2 km; 3.2 mi) northwest of Limbones Island at 2:25 a.m.

[6] On April 8, 2013, BRP Romblon (SARV 3503) was deployed when a Chinese fishing vessel ran aground in Tubbataha Reef.

[8] Publicly available Automated Identification System (AIS) tracking data shows that only one of the vessels, BRP Romblon, has left its home port in the year 2024.