41 CFR § 51-6.12 - Specification changes and similar actions.
(a) Contracting activities shall notify the nonprofit agency or agencies authorized to furnish a commodity on the Procurement List and the central nonprofit agency concerned of any changes to the specification or other description of the commodity.
(b) When a Government entity is changing the specification or description of a commodity on the Procurement List, including a change that involves the assignment of a new national stock number or item designation, the office assigned responsibility for the action shall obtain the comments of the Committee and the central nonprofit agency concerned on the proposed change and shall notify the nonprofit agency and the central nonprofit agency concerned at least 90 days prior to placing an order for a commodity covered by the new specification or description.
(c) For services on the Procurement List, the contracting activity shall notify the nonprofit agency furnishing the service and the central nonprofit agency concerned at least 90 days prior to the date that any changes in the statement of work or other conditions of performance will be required, including assumption of performance of the service by the contracting activity.
(d) If an emergency makes it impossible for a contracting activity to give the 90-day notice required by paragraphs (b) and (c) of this section, the contracting activity shall inform the nonprofit agency and the central nonprofit agency concerned of the reasons it cannot meet the 90-day notice requirement when it places the order or change notice.
(e) Nonprofit agencies shall recommend changes in specifications, item descriptions, and statements of work that will improve the commodity or service being provided, reduce costs, or improve overall value to the Government. Contracting activities shall respond promptly to these recommendations and work with the nonprofit agencies to implement them when appropriate.