HPAS is open to any hydrographic surveyor or person who is planning to become a hydrographic surveying professional. Although the initial region of coverage for HPAS focuses on IFHS member societies, it is planned to allow as wide a membership as possible.
Entry and application for accreditation requires several forms and documents to be completed and provided. Referees known to the applicant should endorse the application. To aid the applicant in compiling the necessary evidence, an application checklist is available on the HPAS website.