Interpretation ID: aiam3525
Project Engineer
FWD Corporation
Clintonville
WI 52929;
Dear Mr. Steenbock: This responds to your recent letter asking whether Safety Standard No 205, *Glazing Materials*, permits the use of Items 4 and 5 rigid plastics in rear windows on fire trucks. You were confused because the 'ANS Z26' standard permits rigid plastics in these locations, yet Standard 205 is silent on the issue.; The fact that Standard No. 205 does not specifically state that Items and 5 rigid plastics may be used in rear windows in trucks does not mean that such use is not permitted. The 'ANS Z26' standard is incorporated by reference in Standard No. 205 (paragraph S5.1.1). Therefore, glazing materials that conform with 'ANS Z26' may be used in the locations specified in that standard. In addition to the requirements and specified locations in 'ANS Z26,' Standard 205 includes other locations and requirements for additional types of glazing, as well as other locations for the Items of glazing that are specified in 'ANS Z26.'; Sincerely, Frank Berndt, Chief Counsel