According to PD 1570, an aeronautical engineer shall have an official seal bearing which details?

The official seal of an aeronautical engineer as required by PD 1570 must include the name and registration numbers, which serves important purposes in professional practice. The seal acts as a form of authentication for documents, plans, and designs that the engineer submits, indicating that they have been prepared under the engineer's supervision and meet the professional standards set forth in the engineering field. Including the name provides clear identification of the engineer responsible for the work, while the registration numbers signify that the engineer is licensed and recognized by the appropriate regulatory body. This not only validates the work but also fosters accountability and professionalism in engineering practices.

Other details such as signature and date or school and graduation year do not fulfill the primary function of a seal, which is to authenticate and legitimize professional documents. The inclusion of institution and license expiration does not align with the standard requirements for the content of a professional seal as outlined in PD 1570. Therefore, the correct details included on the official seal emphasize the engineer's identity and credentialing, which are crucial for the integrity of engineering work.