(a) The contracting officer shall insert the clause at
1852.242-72, Observance of Legal Holidays, in contracts when work will be performed at a NASA installation.
(b) The clause shall be used with its Alternate I in cost-reimbursement contracts when it is desired that contractor employees not have access to the installation during Government holidays. This alternate may be appropriately modified for fixed-price contracts.
(c) The clause may be used with its Alternate II in cost-reimbursement contracts when it is desired that administrative leave be granted contractor personnel in special circumstances, such as inclement weather or potentially hazardous conditions. This alternate may be appropriately modified for fixed-price contracts.
