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United States Department of Transportation United States Department of Transportation

AC 20-167B - Airworthiness Approval of Enhanced Vision System, Enhanced Flight Vision System, and Combined Vision System Equipment

Document Information

Number
20-167B
Title
Airworthiness Approval of Enhanced Vision System, Enhanced Flight Vision System, and Combined Vision System Equipment
Status
Active
Date issued
2025-09-08
Office of Primary Responsibility
AIR-626, Human Machine Interface Section
Description

This advisory circular (AC) provides guidance for gaining airworthiness approval for enhanced vision systems in aircraft. Specifically, it provides one acceptable means for complying with title 14, Code of Federal Regulations (14 CFR) part 23, 25, 27, or 29 airworthiness regulations when installing an enhanced vision system (EVS), an enhanced flight vision system (EFVS) or combined vision system (CVS) in an aircraft. This guidance was developed primarily for part 25 aircraft. You may also use this guidance for part 23, 27, and 29 aircraft. As vision system technology advances, applicants are encouraged to propose alternative methods to their AIR certification branch to integrate new and novel safety enhancing vision system functions into their aircraft.

Content
Cancels
Cancels
Number Title Date
20-167A Airworthiness Approval of Enhanced Vision System, Synthetic Vision System, Combined Vision System, and Enhanced Flight Vision System Equipment

This advisory circular (AC) provides guidance for gaining airworthiness approval for enhanced and synthetic vision systems in aircraft. Specifically, it provides one acceptable means for complying with Title 14 of the Code of Federal Regulations (14 CFR) part 23, 25, 27, or 29 airworthiness regulations when installing a synthetic vision system (SVS), enhanced vision system (EVS), combined vision system (CVS), or enhanced flight vision system (EFVS) in an airplane or rotorcraft. Since the release of Draft AC 20-167A for public comment, the FAA revised the standard format for Advisory Circulars. AC 20-167A is formatted in compliance with the new standard format, meaning the numbering of paragraphs changed from the draft that was presented for public comment. The preamble accompanying the 2016 EFVS rule specifically references paragraphs 4-5, 4-5.c.4, 4-5.c.4.(h).(iv), and 6-2.f.4. These referenced paragraphs equate to paragraphs 4.5, 4.5.3.4, 4.5.3.4.8.4, 6.2.6.4, respectively.

 2016-12-06