American Institute Of Architects 
Resources include AIA contract documents, handbooks, guidelines, and MasterSpec.
ARCAT 
Library of manufacturer's specifications and CAD details; directory of building products and manufacturers. Free downloads, sponsored by vendors.
Arcom Master Systems 
MASTERSPEC specifications and SPECWARE specification development and production tools.
Builders Hardware Manufacturers Association-Standards and Certification for Architectural Hardware 
Publisher of standards for architectural (door and window) hardware. Product directory, sales of standards documents, and technical support.
Construction Product Marketing Group 
Marketing Consultant to construction product manufacturers. Provide AIA/CES Continuing Education Programs, Guide Specifications, and Sales Training.
The Construction Specifications Institute 
Technical information and products, continuing education, professional conferences, and product shows. CSI MasterFormat provides a common system of organizing and presenting construction documents.
Construction Specifications Canada 
Specifications documents and templates, directory of members.
Digicon Information Inc 
Canadian "National Master Specification" and SpecSUITE documents and consulting services.
e-specs 
Information on this specifications consulting firm.
First Source Exchange 
Building products catalogue with preliminary product selection information, comprehensive listing of manufacturers, technical product information, and MANU-SPEC proprietary specifications.
International Construction Information Society 
ICIS is an association of 16 organisations in 14 countries, each of whom produce national master specification systems and/or construction cost planning tools. The site includes links to member organisations.
National Pavement Contractors Association 
Specifications for pavement related work, a glossary of pavement terms, and personal help with pavement specifications or questions.
NBS National Building Specification (UK) 
Publisher of specification publishing software and documents. Description of products and services, contact info.
School Dude 
Information for school maintenance professionals, including postings of specifications and bid documents.
Specification Links 
Links to manufacturers and associations.
Specifications Consultants in Independent Practice 
Directory of members, forum for specifiers, and information on the organization.
Speclink 
Products for cost management, cost engineering, value analysis, and construction specifications.
4specs 
Building products catalogue, with links to manufacturers.
Spectext Master Guide Specifications 
System for preparing clear, concise specifications that conform to CSI formats.
SpecType 
Training for SGML SPECSINTACT (Military specs)in the United States.
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