Foreword (This foreword is not part of this bulletin.) This document has been submitted to APCO/NASTD/FED by the Telecommunications Industry Association (TIA)@ as provided for in a Memorandum of Understanding (MOU) dated December 1993. That MOU provides that APCO/NASTD/FED will devise a Common System Standard for digital public safety communications (the Standard)@ and that TIA shall provide technical assistance in the development of documentation for the Standard. This document has been developed with inputs from the APCO/TIA Project 25 Interface Committee (APIC)@ the APIC Compliance Assessment Process and Procedures Task Group@ and TIA Industry members. This document is being published because it is felt that there is an urgent need for technical information on the emerging digital techniques for Land Mobile Radio Service. This document describes the format for a Supplier's Declaration of Compliance (SDoC) submitted to document Project 25 compliance.