External Resource Sharing Agreement. A sort External Partnership Agreement, established in the context of the TRICARE program by settlement of a military medical treatment facility commander and an authorized TRICARE contractor. External Resource Sharing Agreements may incorporate TRICARE options in lieu of ordinary CHAMPUS options that may apply to straightforward External Partnership Agreements. A well being care supplier that meets the applicable necessities established by § 199.6. The Director, OCHAMPUS, or a designee, shall oversee all CHAMPUS personnel, fiscal intermediaries, providers, and beneficiaries to ensure compliance with this part.