Notice is hereby given to all mariners and other parties concerned that:
1. Reference: Letter from Chief of Staff Armed Forces of the Philippines, General Eduaro M Año AFP, dated April 19, 2017.
2. The Trilateral Cooperative Arrangement (TCA) among Indonesia, Malaysia and the Philippines dated 14 July 2016 and the 3rd Joint Working Group Meeting (JWG) on TCA held in Jakarta, Indonesia on March 8-10, 2017, the three signatories to the TCA, Indonesia, Malaysia and the Philippines agreed for the establishment of transit Corridors within the Area of Maritime Interest (AMI), which covers the common maritime areas. The transit corridors will serve as safety areas which will be patrolled by the three Countries to allow commercial traffic safe passage. The limit of the areas bounded by the following coordinates:
| POINT ID | LATITTUDE | LONGITUDE | REMARKS |
| 1 | 08 50 40 N | 123 00 00 E | |
| 2 | 05 59 36 N | 119 48 59 E | |
| 5 | 05 52 36 N | 119 47 06 E | |
| 6 | 05 07 45 N | 119 35 02 E | SIBUTU CHANNEL |
| 7 | 04 23 00 N | 119 35 00 E | |
| 11 | 04 28 08 N | 119 42 00 E | |
| 12 | 05 04 35 N | 119 42 00 E | |
| 13 | 05 56 30 N | 119 56 00 E | |
| 3 | 06 00 00 N | 118 50 00 E | |
| 4 | 05 52 36 N | 118 57 34 E | |
| 8 | 04 23 00 N | 119 46 54 E | |
| 9 | 06 13 33 N | 122 27 00 E | |
| 10 | 06 17 14 N | 122 20 00 E | |
| 14 | 07 32 43 N | 121 43 00 E | |
| 15 | 06 55 00 N | 121 43 00 E | |
| 16 | 06 40 00 N | 122 20 00 E | BASILAN STRAIT |
| 17 | 06 41 28 N | 122 27 00 E | |
| 18 | 06 56 28 N | 121 50 00 E | |
| 19 | 07 38 58 N | 121 50 00 E | |
| 20 | 08 41 16 N | 123 00 00 E |
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.
4. The cooperation of all concerned in effecting the widest dissemination of this information is requested.