10 Tex. Admin. Code § 6.410
Subrecipient Weatherization work shall be covered by general liability insurance for an amount not less than combined total of materials, labor, support and health and safety. The Department strongly recommends Pollution Occurrence Insurance to be part of or an addendum to Subrecipient's general liability insurance coverage. Subrecipient must ensure that each Subcontractor performing Weatherization activities maintain adequate insurance coverage for all units to be weatherized. Weatherization contractors must provide a one-year warranty on their work for parts and labor; the period for the warranty coverage shall begin at the completion of installation. If Subrecipient relinquishes its Weatherization program, Weatherization work completed within 12 months of the date of surrender of the program, must be covered by general liability insurance or contractor warranty. Public Organizations that have self insurance complying with Tex. Gov't Code Chapter 2259 covering weatherization work, may, but are not required to, purchase additional coverage.
10 Tex. Admin. Code § 6.410