(a) For the purpose of community right-to-know, a facility operator covered by this chapter shall compile and maintain a tier two form that contains information on hazardous chemicals present in the facility in quantities that meet or exceed thresholds determined by the EPA in 40 C.F.R. part 370, or at any other reporting thresholds as determined by commission rule for certain highly toxic or extremely hazardous substances.
(b) Multiple facilities may be reported on the same tier two form, with appropriate facility identifiers, if the hazardous chemicals or hazardous chemical categories present at the multiple facilities are in the same ranges. In multiple facility reporting, the reporting thresholds must be applied to each facility rather than to the total quantities present at all facilities.

(c) Each tier two form shall be filed annually with the commission, along with the appropriate fee, according to the procedures specified by commission rules.
(d) The tier two form shall be used to comply with the updating requirements in EPCRA, Section 311, but a fee may not be associated with filing the report.
(e) Except as provided by Section 507.0061(c), a facility operator shall file the tier two form with the commission not later than the 90th day after the date on which the operator begins operation or has a reportable addition, at the appropriate threshold, of a previously unreported hazardous chemical or extremely hazardous substance.
(e-1) Except as provided by Section 507.0061(c), a facility operator shall file an updated tier two form with the commission:
(1) not later than the 90th day after the date on which the operator has a change in the chemical weight range, as listed in 40 C.F.R. part 370, of a previously reported hazardous chemical or extremely hazardous substance; and
(2) as otherwise required by commission rule.
(e-2) A facility operator shall furnish a copy of each tier two form and updated tier two form filed with the commission under this section to the fire chief of the fire department having jurisdiction over the facility and to the appropriate local emergency planning committee.
(f) A facility operator shall file a safety data sheet with the commission on the commission’s request.
(g) The commission shall maintain records of the tier two forms and other documents filed under this chapter or EPCRA for at least 30 years.
(h) Except as provided by Section 507.012, documents filed under this chapter are subject to Chapter 552, Government Code.