FTI 铺面砖协会(Facing Tile Institute)
GA 美国石膏协会(Gypsum Association, USA)
GRA 区域建筑互助会(Guide of Religion Architecture)
IEEE 美国电子电机工程师协会(Institute of Electrical and Electronics Engineers)
IES 照明工程协会(Illuminating Engineering Society)
IHACI 暖气空调工业协会(Institute of Heating and Air Condition Industry)
ILIA 美国印第安石灰岩协会(Indiana Limestone Institute of America Inc.)
IMIAC 国际耐圬工业协会(International Masonry Industry All Weather Council)
LIA 铅工业协会(Lead Industries Association, Inc.)
