1. This clause applies to the extent that this contract involves access to information classified "Confidential," "Secret," or "Top Secret."

2. The Contractor shall comply with—

   1. The Security Agreement (DD Form 441), including the National Industrial Security Program Operating Manual (32 CFR part 117); and

   2. Any revisions to that manual, notice of which has been furnished to the Contractor.

3. If, subsequent to the date of this contract, the security classification or security requirements under this contract are changed by the Government and if the changes cause an increase or decrease in security costs or otherwise affect any other term or condition of this contract, the contract shall be subject to an equitable adjustment as if the changes were directed under the Changes clause of this contract.

4. The Contractor agrees to insert terms that conform substantially to the language of this clause, including this paragraph (d) but excluding any reference to the Changes clause of this contract, in all subcontracts under this contract that involve access to classified information.

(End of clause)