1. Minimum Aviation Systems Performance Standards (MASPS) for the Local Area Augmentation System (LAAS) December 9, 2004
2. Minimum Operational Performance Standards (MOPS) for GPS LAAS Airborne Equipment June 26, 2007
3. Minimum Operational Performance Standards (MOPS) for GPS Wide Area Augmentation System (WAAS) Airborne Equipment December 13, 2006
4. Interface Specification: Navstar GPS Space Segment/Navigation User Interfaces December 7, 2004 www.navcen.uscg.govgpsgeninfoIS-GPS-200D.pdf
5. Navstar GPS Space Segment / User Segment L5 Interfaces November 24 2003 www.navcen.uscg.govGPSmodernizationNumber.pdf