This section sets sets forth NASA requirements for mandatory drug and alcohol testing of certain contractor personnel under section 203, National Aeronautics and Space Act of 1958, as amended, 42 U.S.C. 2473, 72 Stat. 429; and Civil Space Employee Testing Act of 1991, Public Law 102–195, sec. 21, 105 Stat. 1616 to 1619.

Employee in a sensitive position means a contractor or subcontractor employee who has been granted access to classified information; a contractor or subcontractor employee in other positions that the contractor or subcontractor determines could reasonably be expected to affect safety, security, National security, or functions other than the foregoing requiring a high degree of trust and confidence; and includes any employee performing in a position designated “mission critical” or performing mission-critical duties. The term also includes any applicant who is tentatively selected for a position described in this paragraph.

Mission Critical Space Systems means the collection of all space-based and ground-based systems used to conduct space missions or support activity in space, including, but not limited to, the crewed space system, space-based communication and navigation systems, launch systems, and mission/launch control.

Mission Critical Positions/Duties means positions or duties which, if performed in a faulty, negligent, or malicious manner, could jeopardize mission critical space systems and/or delay a mission.

Use, in violation of applicable law or Federal regulation, of alcohol includes having, while on duty or during a preemployment interview, an alcohol concentration of 0.04 percent by weight or more in the blood, as measured by chemical test of the individual's breath or blood. An individual's refusal to submit to such test is presumptive evidence of use, in violation of applicable law or Federal regulation, of alcohol.

The contracting officer shall insert the clause at 1852.223–74, Drug- and Alcohol-Free Workforce, in all solicitations and contracts exceeding $5 million in which work is performed by an employee in a sensitive position. However, the contracting officer shall not insert the clause at 1852.223–74 in solicitations and contracts for Commercial Products and Commercial Services.

The contracting officer shall comply with the procedures of FAR 23.506 regarding the suspension of contract payments, the termination of the contract for default, and debarment and suspension of a contractor relative to failure to comply with the clause at 1852.223–74. Causes for suspension of contract payments, termination of the contract for default, and debarment and suspension of the contractor are the following:

(a) The contractor fails to comply with paragraph (b), (c), or (d) of the clause at 1852.223–74; or

(b) Such a number of contractor employees in sensitive positions having been convicted of violations of criminal drug statutes or substantial evidence of drug or alcohol abuse or misuse occurring in the workplace, as to indicate that the contractor has failed to make a good faith effort to provide a drug- and alcohol-free workforce.