Notice is hereby given to all mariners and other parties concerned that:
1. Reference: Philippine Navy Radio Message Cite NOCB-0315-231.
2. The Philippine Navy Vessel PG378 and PG296 will conduct Annual Test Firing of her naval guns on April 09, 2015 at vicinity 13.8 nautical miles Northeast off Abolog, Cagayan bounded by the following coordinates:
| Point A | Latitude 18 degs 39.76 mins North | Longitude 121 degs 30.85 mins East |
| Point B | Latitude 18 degs 38.22 mins North | Longitude 121 degs 31.82 mins East |
| Point C | Latitude 18 degs 38.17 mins North | Longitude 121 degs 40.40 mins East |
| Point D | Latitude 18 degs 39.74 mins North | Longitude 121 degs 40.44 mins East |
3. In this connection, all ships/watercrafts transiting the vicinity of the above-mentioned areas are advised to take note of the information and take necessary precautionary measures at all times.
4. The cooperation of all concerned in effecting widest dissemination of this information is requested.