Name: Modification Number
Screen Name: Mod No
Definition: An identifier issued by an agency that uniquely identifies one modification for one contract, agreement, order, etc.
FAR/DFARS: DFARS 253.204-70(b)(2)
Length: Variable (Maximum 25 characters)
Required: Mandatory for Modifications.
FPDS Legacy: Currently collected; PEC approved
Notes: Modification Number must not equal “Award” or “Basic” or all zeros or any other “odd” /disallowed value.
Instruction: When reporting modifications to contracts, agreements, or orders, report the modification number assigned by the reporting contracting office. For any given PIID, all Modification Numbers must be unique.