(a) General provisions.
  (1) All underground storage tanks (USTs) in existence on or after September 1, 1987, must be registered with the agency on authorized agency forms in accordance with subsection (e) of this section, except for those tanks which:
    (A) are completely exempted or partially exempted from regulation under §334.3(a) or (b) of this title (relating to Exemptions for Underground Storage Tanks (USTs) and UST Systems);
    (B) are completely excluded or partially excluded from regulation under §334.4(a) or (c) of this title (relating to Exclusions for Underground Storage Tanks (USTs) and UST Systems);
    (C) were properly registered with the agency prior to September 29, 1989, under the provisions of the federal Solid Waste Disposal Act, §9002 (42 United States Code, §§6921, et seq.), provided that the owner or operator must submit notice of all changes and additional information in accordance with the provisions of subsection (d) of this section;
    (D) have been permanently removed from usage by either:
      (i) were permanently removed from the ground before May 8, 1986; or
      (ii) remain in the ground, but were emptied, cleaned, and filled with solid inert materials on or before January 1, 1974, in accordance with accepted industry practices in effect at the time the UST was taken out of operation; or
    (E) were out of operation and empty of regulated substances at the time of their discovery, provided that:
      (i) the facility owner and operator can reasonably demonstrate no prior knowledge of the existence of the USTs; and
      (ii) the USTs are permanently removed from service in accordance with §334.55 of this title (relating to Permanent Removal from Service) no later than September 29, 1990, or within 60 days of their discovery, whichever is later.
  (2) The owner and operator of a UST are responsible for compliance with the tank registration requirements of this section. An owner or operator may designate an authorized representative to complete and submit the required registration information. However, the owner and operator remain responsible for compliance with the provisions of this section by such representatives.
  (3) All USTs subject to the registration requirements of this section are also subject to the fee provisions of Subchapter B of this chapter (relating to Underground Storage Tank Fees), except where specifically exempted in this chapter. The failure by a tank owner or operator to properly or timely register any tanks does not exempt the owner from such fee assessment and payment provisions.
  (4) Proper completion of the tank registration portions of the UST registration and self-certification form will result in the agency's issuance of a UST registration certificate for the tanks at the facility covered by that registration. This certificate is tied to the delivery prohibitions detailed in §334.5(b)(2) of this title (relating to General Prohibitions for Underground Storage Tanks (USTs) and UST Systems).
(b) Existing tanks. Any person who owns a UST that was in existence on September 1, 1987, must register such tank with the agency not later than September 1, 1987, on an authorized agency form, except for those tanks exempted and excluded under subsection (a)(1)(A) - (D) of this section. Upon November 23, 2000, the obligation becomes joint and several with the tank operator as well.
(c) New or replacement tanks. Any person who owns a new or replacement UST that is placed into service on or after September 1, 1987, must register the tank with the agency on an authorized agency form within 30 days after the date any regulated substance is placed into the tank, except for those tanks exempted or excluded under subsection (a)(1)(A) - (D) of this section. Upon November 23, 2000, the obligation becomes joint and several with the tank operator as well.
(d) Changes or additional information.
  (1) The owner or operator of a UST system must provide written notice to the agency of any changes or additional information concerning such system. Types of changes or additional information subject to this requirement must include, but are not limited to, the following:
    (A) change in owner or operator, or change in owner or operator information (e.g., authorized representative, mailing address, and/or telephone number), provided that:
      (i) amended registrations of owner or operator information (other than ownership transfers) may be submitted by the owner, operator, or an authorized representative of the owner or operator; and
      (ii) amended registrations reflecting UST ownership transfers must be provided by the new UST owner or a legally-authorized representative of the new UST owner (i.e., registrations of ownership transfers submitted by others will be returned and will not be recorded);
    (B) change in the operational status of any tank system (e.g., in service, temporarily out-of-service, removed from the ground, permanently abandoned in-place, change-in-service to provide for the storage of a substance other than a regulated substance, or change to exempt or excluded status);
    (C) change in the type of stored regulated substance, including switching to a regulated substance containing:
      (i) greater than 10% ethanol; or
      (ii) greater than 20% biodiesel;
    (D) installation of additional tanks and/or ancillary equipment at an existing facility;
    (E) change in the type of piping for an existing tank;
    (F) the addition of, or a change in the type of, internal or external corrosion protection for the tanks, piping, and/or ancillary equipment;
    (G) the addition of, or a change in the type of, spill and overfill prevention equipment for the tanks;
    (H) the addition of, or a change in the type of, release detection equipment or methods for the tanks and/or piping;
    (I) change in the location of documents and records for the facility; and
    (J) change in financial assurance information related to the facility as specified in Chapter 37, Subchapter I of this title (relating to Financial Assurance for Petroleum Underground Storage Tank Systems).
  (2) Notice of any change or additional information must be submitted on an authorized agency form which has been completed in accordance with subsection (e) of this section. The agency's UST facility number for the facility must be included in the appropriate space on the form.
  (3) Notice of any change or additional information must be filed with the agency within 30 days from the date of the occurrence of the change or addition, or within 30 days from the date on which the owner or operator first became aware of the change or addition, as applicable.
  (4) However, for the initial filing of the UST registration and self-certification form (which is described in §334.8(c)(4) of this title (relating to Certification for Underground Storage Tanks (USTs) and UST Systems)) for all regulated UST systems at a facility, all UST owners and operators must complete the "Tank Identification/Description" section of the UST registration portion of the form by the same deadline given in §334.8(c)(4)(A)(vi) of this title. This requirement does not relieve an owner or operator from any other registration requirements under this section.
(e) Required form for providing UST registration information.
  (1) Any UST owner or operator required to submit UST registration information under subsections (a) - (d) of this section must provide all the information indicated on the agency's authorized form for each regulated UST. The UST registration information must be provided on the appropriate agency form, as specified in paragraph (6) of this subsection.
  (2) The UST registration portion of the form must be filled out completely and accurately. Upon completion, the form must be dated and signed by the owner, or the operator, or an authorized representative of the owner or operator, and must be filed with the agency within the specified time frames.
  (3) All UST owners or operators required to submit UST registration information under subsections (a) - (d) of this section must provide the registration information for all USTs located at a particular facility on the same form.
  (4) UST owners or operators who own or operate USTs located at more than one facility must complete and file a separate form for each facility where regulated USTs are located.
  (5) If additional information, drawings, or other documents are submitted with new or revised registration data, specific facility identification information (including the facility identification number, if known) must be conspicuously indicated on each document and all such documents must be attached to and filed with the form.
  (6) For any UST registration information filed with the agency on or after November 23, 2000, UST owners and operators must provide the required information on an authorized agency UST registration and self-certification form, as prescribed by §334.8(c)(4) of this title.
  (7) Owners and operators of petroleum UST systems should also see the financial assurance requirements in §37.870(b) of this title (relating to Reporting, Registration, and Certification).
(f) Inadequate information. When any of the required UST registration information submitted to the agency is determined to be inaccurate, unclear, illegible, incomplete, or otherwise inadequate, the agency may require the owner and/or operator to submit additional information. An owner or operator must submit any such required additional information within 30 days of receipt of such request.

Source Note: The provisions of this §334.7 adopted to be effective September 29, 1989, 14 TexReg 4714; amended to be effective June 25, 1990, 15 TexReg 3424; amended to be effective November 8, 1995, 20 TexReg 8800; amended to be effective November 23, 2000, 25 TexReg 11442; amended to be effective November 18, 2004, 29 TexReg 10532; amended to be effective May 31, 2018, 43 TexReg 3390