Delaware Code
Chapter 63. EMERGENCY PLANNING AND COMMUNITY RIGHT-TO-KNOW
§ 6305. Material safety data sheets; safety data sheets.

(a) The owner or operator of any facility which is required to prepare or have available a material safety data sheet or safety data sheet for a hazardous chemical under the Occupational Safety and Health Act of 1970 and regulations promulgated under that act (29 U.S.C. § 651 et seq.) or the Delaware Hazardous Chemical Information Act and regulations promulgated under that act (Chapter 24 of this title) shall submit a material safety data sheet or safety data sheet for each such chemical present at the facility in an amount which equals or exceeds the threshold quantities established under subsection (c) of this section or a list of such chemicals, as described in subsection (d) of this section, to the Department.
(b) Submission to the Department under this section shall serve as submission to the appropriate local emergency planning committee, the State Emergency Response Commission and the fire department with jurisdiction over the facility as set forth under 42 U.S.C. § 11021 and regulations established under that act.
(c) The threshold quantities for the purpose of this section shall be as follows:

(1) For substances identified as hazardous chemicals, except as provided in paragraphs (c)(2) of this section, the threshold shall be 55 gallons or 500 pounds, whichever is lower.
(2) For substances included in the list of extremely hazardous substances under § 6303 of this title, the threshold shall be 55 gallons, 500 pounds or the threshold planning quantity, whichever is lower.
(3) For a substance used solely for the purpose of heating a building or buildings at a facility, the threshold for that substance at that facility shall be 10,000 pounds.
(4) For the purposes of requests under subsection (f) of this section, the threshold shall be zero.
(d) The list referred to under subsection (a) of this section shall include each of the following:

(1) A list of the hazardous chemicals for which a material safety data sheet or safety data sheet is required under the Occupational Safety and Health Act of 1970 [29 U.S.C. § 651 et seq.] and regulations promulgated under the act or the Delaware Hazardous Chemical Information Act and regulations promulgated under that act (Chapter 24 of this title), grouped in categories of health and physical hazards as set forth under the Occupational Safety and Health Act of 1970 [29 U.S.C. § 651 et seq.] and regulations promulgated under the act, or in such other categories as the Secretary may prescribe under subsection (e) of this section.
(2) The chemical name or the common name of each such chemical as provided on the material safety data sheet or safety data sheet.
(3) Any hazardous component of each such chemical as provided on the material safety data sheet or safety data sheet.
(e) For purposes of the list under subsection (d) of this section, the Secretary may modify the categories of health and physical hazards as set forth under the Occupational Safety and Health Act of 1970 [29 U.S.C. § 651 et seq.] and regulations promulgated under that act by requiring information to be reported in terms of groups of hazardous chemicals which present similar hazards in an emergency.
(f) Upon request by the local emergency planning committee or the Department, the owner or operator of a facility subject to this section shall submit the material safety data sheet or safety data sheet for a chemical to the person making the request.
(g) The initial material safety data sheet or safety data sheet or list required under this section shall be submitted before the later of:

(1) Twelve months after the date of the enactment of this requirement; or
(2) Three months after the owner or operator of a facility is required to prepare or have available a material safety data sheet or safety data sheet for the chemical under the Occupational Safety and Health Act of 1970 [29 U.S.C. § 651 et seq.] and regulations promulgated under that act or the Delaware Hazardous Chemical Information Act and regulations promulgated under that act (Chapter 24 of this title); or
(3) Three months after a chemical requiring a material safety data sheet or safety data sheet becomes present in an amount which equals or exceeds the threshold quantity.
(h) Within 3 months following discovery by an owner or operator of significant new information concerning an aspect of a hazardous chemical for which a material safety data sheet or safety data sheet was previously submitted, a revised sheet shall be submitted.