| American Institute of Architects | www.aia.org | Visit site |
| American Standards of Testing Materials | www.astm.org | Visit site |
| Association of Preservation Technology | www.apti.org | Visit site |
| Brick Industries Association | www.gobrick.com | Visit site |
| Construction Specifications Institute | www.csinet.org | Visit site |
| EPA | www.epa.gov | Visit site |
| International Concrete Repair Institute | www.icri.org | Visit site |
| Marble Institute of America | www.marble-institute.com | Visit site |
| Masonry Contractors Association of America | www.masoncontractors.com | Visit site |
| National Concrete Masonry Association | www.ncma.org | Visit site |
| National Paint & Coatings Association | www.paint.org | Visit site |
| National Roofing Contractors Association | www.nrca.net | Visit site |
| OSHA | www.osha.gov | Visit site |
| Scaffold and Access Industry Association | www.saiaonline.org | Visit site |
| The Arkansas Histroic Preservation Program | www.arkansaspreservation.org | Visit site |
| The Masonry Society | www.masonrysociety.org | Visit site |
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