United States Department of Transportation

Engineering Brief No. 67D, Light Sources Other than Incandescent and Xenon for Airport and Obstruction Lighting Fixtures

Document Date: March 6, 2012

eb_67d_rev.pdf (806.58 KB)

Document Date: March 6, 2012

Description:

"Note" added to par. 2.15 for clarification (July 25, 2017)
See Clarification of 'Effective Date' in Engineering Brief No. 67D below

Document Date: March 15, 2012

eb-67dClarification.pdf (275.37 KB)

Document Date: March 15, 2012

Description:

Clarification of 'Effective Date' in Engineering Brief No. 67D