This document describes the Detect and Avoid function necessary to support the Remote pilot to operate the RPA in airspace A-C under IFR according to the OSED, Ground based DAA not being covered. This standard specifies system characteristics, since it is composed of several individual components. It should be useful to designers, manufacturers, installers, service providers and users for systems. Compliance with this standard is recommended as one means of assuring that the system and each subsystem will perform its intended function(s) satisfactorily under all conditions normally encountered in routine aeronautical operations for the environments intended. One potential use of the MASPS is to support early system/application development and prototyping. Additionally, the MASPS may be implemented by one or more regulatory documents and/or advisory documents (e.g., certifications, authorizations, approvals, commissioning, advisory circulars, notices, etc.) and may be implemented in part or in total.