In accordance with Clause 8-2: Authorization and Consent, the liability of the Postal Service for patent infringement or for the unauthorized use of any patent will be determined by the provisions of any patent indemnity clause included in the contract or in any subcontract under the contract (at any tier) and by any indemnification or warranty (express or implied) otherwise provided by the supplier or subcontractor for similar products or services when supplied to commercial buyers. Clause 8-2: Authorization and Consent also deals with R&D work, supplies and construction, and subcontracts expected to exceed $50,000.