Specifications include, but are not limited to: The successful Offeror shall provide training that covers the following topics according to the NREL Standard Work Specifications listed below: A.Prework Qualifications (Home Installation); 1)Basements and Crawl Spaces; 2)Proper Installation of Manufactured Home; B.Pier and Skirting Foundations—Ground Moisture Barriers; C.Manufactured Housing Walls; 1)Exterior Holes and Penetrations;2)Interior Holes and Penetrations; 3)Stuffing Wall Cavities with Fiberglass Batts; 4)Fiberglass Blown Insulation Installation (Lifting Siding); 5)Fiberglass Blown Insulation Installation (via Penetrations Through or Behind the Siding); 6)Spray Foam Insulation Installation in Cavities above Doors and Windows; 7)Holes, Penetrations, and Marriage Lines; D.Manufactured Housing Windows and Doors; 1)Maintenance, Repair, and Sealing; a)Double-Hung Wood Windows; b)Single-Unit Window and Fixed Frame with Wood Sash; c)Exterior Doors; d)Pocket Door; e)Interior Storm Windows; f)Repair, Maintenance, and Weather Stripping of Windows; g)Repair, Maintenance, and Weather Stripping of Doors;