89R3462 MP-D By: Vasut H.B. No. 609 A BILL TO BE ENTITLED AN ACT relating to the cleaning of a structure used to grow oysters for cultivated oyster mariculture. BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF TEXAS: SECTION 1. Subchapter B, Chapter 26, Water Code, is amended by adding Section 26.0406 to read as follows: Sec. 26.0406. GENERAL PERMITS FOR AQUACULTURE; EXEMPTION FOR CLEANING STRUCTURES USED FOR GROWING OYSTERS. (a) A general permit for aquaculture issued by the commission must allow the holder of a cultivated oyster mariculture permit under Chapter 75, Parks and Wildlife Code, to discharge into waters of this state waste related to the cleaning of a structure used to grow oysters for cultivated oyster mariculture in accordance with Subsection (b). (b) A cultivated oyster mariculture permit holder cleaning a structure as described by Subsection (a): (1) may clean the structure only: (A) at the location where the permit holder is authorized to operate; and (B) with water from that location; (2) may not alter the water in any way before using the water for cleaning, including by adding a soap, chemical, or similar substance; and (3) must comply with all other permit conditions established by the commission. (c) In establishing a permit condition described by Subsection (b)(3), the commission shall consult with the Parks and Wildlife Department. SECTION 2. This Act takes effect September 1, 2025.