[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR125.115]

[Page 579]
 
                     TITLE 14--AERONAUTICSAND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 125--CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING 
CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000
 POUNDS OR MORE; AND 
RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT--Table of Contents
 
              Subpart E--Special Airworthiness Requirements
 
Sec. 125.115  Internal doors.

    In any case where internal doors are equipped with louvres or other 
ventilating means, there must be a means convenient to the crew for 
closing the flow of air through the door when necessary.