GAO-10-748SP: Aviation and the Environment: Survey of Airport Officials on Airport Environmental Issues, an E-supplement to GAO-10-50

U.S. Government Accountability Office

Q61. Is the EMS certified?
(Total Population)

Yes, certified by a 3rd party
(percent)		 Yes, self-certified
(percent)		 No
(percent)		 No answer
(percent)		 Number
of respondents
9.1 2.3 31.8 56.8 44

Q61. Is the EMS certified?
(Large and Medium Hubs)

Yes, certified by a 3rd party
(percent)		 Yes, self-certified
(percent)		 No
(percent)		 No answer
(percent)		 Number
of respondents
3.6 3.6 39.3 53.6 28