NPCA – National Precast Concrete Association
www.precast.org

KDOT – Kansas Department of Transportation
www.ksdot.org/burmatrres/pql/pql-40-1.pdf

MDOT – Missouri Department of Transportation
www.modot.org/business/materials/pdf/vol_1/fs1026t1.pdf

KCMMB – Kansas City Metro Materials Board
www.kcmmb.org/suppliers/view_supplier.asp

O.P. – Overland Park, KS
www.opkansas.org/_assets/pw/approved_materials_list.pdf

JCWWD – Johnson County Waste Water Department

Lenexa – Lenexa, KS
www.ci.lenexa.ks.us/publicworks/ApprovedList.pdf

KCMO – Kansas City Missouri Public Works