The main purpose of an endorsement is to modify the policy. In title insurance, an endorsement can add, limit, delete, clarify, or expand coverage depending on the approved form and underwriting requirements. It may affect premium, but changing the premium is not the purpose of an endorsement. The policy’s insuring provisions and covered risks describe the core coverage; the endorsement alters how that policy applies to a particular transaction or risk. For example, endorsements may address access, zoning, restrictions, manufactured housing, survey matters, or additional insureds. This is squarely within Title Insurance because the Pennsylvania title outline lists endorsements under title insurance policy structure and provisions, along with commitments, owner’s policies, loan policies, Schedule A, Schedule B, exclusions, and conditions.