Texas Government Code - GOV'T § 2269.363. Assumption of Risks

(A) scope changes and modifications, as requested by the governmental entity;

(B) unknown or differing site conditions unless otherwise provided by the governmental entity in the request for proposals and final contract;

(C) regulatory permitting, if the governmental entity is responsible for those risks and costs by law or contract;  and

(D) natural disasters and other force majeure events unless otherwise provided by the governmental entity in the request for proposals and final contract;  and