40 CFR § 35.2350 - Subagreement enforcement.
(a) Regional Administrator authority. At the grantee's request the Regional Administrator may provide technical and legal assistance in the administration and enforcement of any subagreement related to treatment works for which an EPA grant was made and to intervene in any civil action involving the enforcement of such subagreements, including subagreement disputes which are the subject of either arbitration or court action.
(c) Grantee responsibilities. The provision of technical or legal assistance under this section in no way releases the grantee from its obligations under § 35.2214, or affects EPA's right to take remedial action, including enforcement, against a grantee that fails to carry out those obligations.