DILG MC 92-30, which defines the policy guidelines on the creation, modification, change, and registration of corporate seals of LGUs, as well as the guidelines issued by National Historical Commission of the Philippines (NHCP) on the creation, design, modification, approval, registration and use of the official seals and other heraldic items and devices of the government. 

1. Transmittal letter of the LCE addressed to the Chairman of the National Historical Institute requesting review of the proposed corporate seal

2. Sanggunian Resolution endorsing the proposed corporate seal to the NHI for appropriate action

3. Brief historical background of the LGU

4. Photographs of existing, objects or scenic spots incorporated in the proposed seal, together with narrative description for proper visual representation, i.e. terrain, building, bridge, bell