Specifications include, but are not limited to: The minimum specifications that will be required in the fabrication of the proposed shelters are included in this Request for Proposals and include shelter size and type, and powdercoat requirements. Design life of the shelters must provide at least 10 years useful life for shelter base as well as coatings, linings, fasteners and all other parts and attachments, and must hold a minimum warranty of 3 years on parts, fabrication and finish. All shelters provided under this contract must meet the minimum standards of the Americans with Disabilities Act. The proposed procurement will include six shelter types: "Standard Single", “Standard Double”, "Business District Single", “Business District Double”, “Urban Contemporary” and “True Cantilevered”.