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Enforcement

Pipeline and Hazardous Materials Safety Administration


Interpretations by Subject

Attendance Requirements - See "Cargo Tank and Rail Car Unloading Attendance Requirements"

Biological Products - Etiologic Agents

Informal Interpretations
- February 17, 1987 letter to Mr. David H. Jet, Keller and Heckman (pdf KB)

Formal InterpretationsFebruary 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations
- (pdf KB)

Bulk Packagings - See also "Liquid Bulk Packagings"

Informal Interpretations
- December 05, 2000 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (pdf KB)
- April 13, 1999 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (see December 5, 2000 correction) (pdf KB)

Cargo Tank and Rail Car Unloading Attendance Requirements

Informal Interpretations
- October 3, 1997 letter to Mr. Baron Day, Bryan Cave L.L.P. (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Carrier Responsibilities

Formal Interpretations
- June 4, 1998 Federal Register, vol. 63, No. 107, Rules and Regulations (pdf KB)

Commerce

Informal Interpretations
- June 14, 2004 Letter to Maruren Lacey, 1st Lt. USAF (pdf 83 KB)
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 24, 2000 letter to Mr. Kevin D. Sagis, Paragon Astronautics
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- August 19, 1997 letter to Ms. Rebekah E. Bell, Lockheed Martin Energy Systems, Inc. (pdf KB)
- December 12, 1997 letter to Mr. Thomas K. Teynor, U.S. Department of Energy (pdf KB)
- September 26, 1994 letter to Mr. Michael Shepard, California Environmental Protection Agency
- April 19, 1994 letter to Ms. Sandra Goldberg, California Department of Justice (pdf KB)
- April 18, 1994 letter to Mr. Steve Shire, Bechtel Petroleum Operations, Inc. (pdf KB)
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)

Contractor

Informal Interpretations
- June 14, 2004 Letter to Maruren Lacey, 1st Lt. USAF (pdf 83 KB)
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)
- October 13, 1992 letter to Mr. Martin G. Malsch, Nuclear Regulatory Commission (pdf KB)
- April 23, 1991 letter to Ms. Susan H. Denny, U.S. Department of Energy (pdf KB)

Cylinders - Charging/Refilling

Informal Interpretations
- March 2, 1987 letter to Mr. Mark Swartz, Amesbury, MA (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Diesel Fuel

Informal Interpretations
- December 05, 2000 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (pdf KB)
- April 13, 1999 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (see December 5, 2000 correction) (pdf KB)

Etiologic Agents - Biological Products

Informal Interpretations
- February 17, 1987 letter to Mr. David H. Jet, Keller and Heckman (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Exemption Requirements/Procedures

Informal Interpretation
- December 05, 2000 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (pdf KB)
- April 13, 1999 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (see December 5, 2000 correction) (pdf KB)

Fee Requirements

Informal Interpretations
- May 22, 2000 letter to Ms. Cheryl C. Burke, Washington Metropolitan Area Transit Authority (pdf KB)
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)

Government Agencies - Transportation By

Informal Interpretations
- June 14, 2004 Letter to Maruren Lacey, 1st Lt. USAF (pdf 83 KB)
- May 26, 2004 Letter to Mr. John R. Carter, III, Science Applications International Corporation. - January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- May 22, 2000 letter to Ms. Cheryl C. Burke, Washington Metropolitan Area Transit Authority (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- June 2, 1994 letter to Mr. David G. Dales, Nebraska Public Power District
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)
- April 23, 1991 letter to Ms. Susan H. Denny, U.S. Department of Energy (pdf KB)

Government Facilities and Government Facility Roads - Transportation On and Public Access To

Informal Interpretations
- June 14, 2004 Letter to Maruren Lacey, 1st Lt. USAF (pdf 83 KB)
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- December 12, 1997 letter to Mr. Thomas K. Teynor, U.S. Department of Energy (pdf KB)
- August 19, 1997 letter to Ms. Rebekah E. Bell, Lockheed Martin Energy Systems, Inc. (pdf KB)
- April 23, 1991 letter to Ms. Susan H. Denny, U.S. Department of Energy (pdf KB)

Hazardous Materials Regulations - General Applicability

Informal Interpretations
- June 14, 2004 Letter to Maruren Lacey, 1st Lt. USAF (pdf 83 KB)
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)

Hazardous Waste

Informal Interpretations
- May 16, 1997 letter to Mr. Phillip A. Doyle , Immigration and Human Rights Clinic (pdf KB)

Incident Reporting

Informal Interpretations
- May 16, 1997 letter to Mr. Phillip A. Doyle , Immigration and Human Rights Clinic (pdf KB)

Infectious Substances - See "Biological Products and Etiologic Agents"

Jurisdiction

Informal Interpretations
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)

Knowing Standard

Informal Interpretations
- May 29, 2001 letter to Mr. Joel R. Hoiland, International Warehouse Logistics Association (pdf KB)

Labpacks Packagings Requirements See also "Packaging Exceptions"

Informal Interpretations
- June 2, 1987 letter to Mr. Gordon Rousseau, Lawrence W. Bierlein, P.C. (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Liquid Bulk Packaging - See "Bulk Packagings"

Informal Interpretations
- December 05, 2000 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (pdf KB)
- April 13, 1999 letter to Mr. Frank McLellan, Menominee Indian Tribe of Wisconsin (see December 5, 2000 correction) (pdf KB)

Non-Profit Company - Transportation By

Informal Interpretations
- August 24, 2000 letter to Mr. Kevin D. Sagis, Paragon Astronautics (pdf KB)

Offeror

Informal Interpretations
- April 14, 1989 letter to Mr. Clifford J. Harvison, National Tank Truck Carriers, Inc. (pdf KB)
- May 16, 1988 letter to Mr. Clifford H. Harvison, National Tank Truck Carriers, Inc. (pdf KB)

Formal Interpretations
- October 28, 1992 Federal Register, Vol.57, No. 209, Rules and Regulations (pdf KB)
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Packagings - Exceptions

Informal Interpretations
- June 2, 1987 letter to Mr. Gordon Rousseau, Lawrence W. Bierlein, P.C. (pdf KB)
- February 17, 1987 letter to Mr. David H. Jet, Keller and Heckman (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Packaging Standards - See "Packagings - Exceptions", "Packaging Testing", and "Reuse of Containers/Packagings"

Packaging Testing

Informal Interpretations
- April 10, 1998 letter to Mr. Manuel Zamorano, Southern California Edison (pdf KB)

Permit Requirements

Informal Interpretations
- May 16, 1997 letter to Mr. Phillip A. Doyle , Immigration and Human Rights Clinic (pdf KB)

Placards

Informal Interpretations
- February 2, 1987 letter to Illinois Department of Transportation (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Poison Inhalation Hazard - See "Toxic-By-Inhalation Materials"

Preemption Criteria

Informal Interpretations
- May 18, 2004 Letter to Mr. John L. Atwood, Rhode Island Trucking Association, Inc. - April 10, 1998 letter to Mr. Manuel Zamorano, Southern California Edison (pdf KB)

Private Facilities and Private or Limited Access Roads - Transportation On and Public Access To

Informal Interpretations
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- December 12, 1997 letter to Mr. Thomas K. Teynor, U.S. Department of Energy (pdf KB)
- August 19, 1997 letter to Ms. Rebekah E. Bell, Lockheed Martin Energy Systems, Inc. (pdf KB)
- March 7, 1996 letter to Mr. Gary J. Garrahan, Digital Audio Disc Corporation (pdf KB)
- April 19, 1994 letter to Ms. Sandra Goldberg, California Department of Justice (pdf KB)
- February 23, 1994 letter to Mr. Lawrence W. Bierlein, Swidler & Berlin (pdf KB)

Radioactive Materials, Radioactive Waste and Spent Nuclear Fuel

Informal Interpretations
- April 10, 1998 letter to Mr. Manuel Zamorano, Southern California Edison (pdf KB)

Registration Requirements

Informal Interpretations
- May 22, 2000 letter to Ms. Cheryl C. Burke, Washington Metropolitan Area Transit Authority (pdf KB)
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)

Formal Interpretations
- October 28, 1992 Federal Register, Vol.57, No. 209, Rules and Regulations (pdf KB)

Reporting - See "Incident Reporting"

Reuse of Containers/Packagings - See also "Used Packagings"

Informal Interpretations
- August 6, 1987 letter to Mr. Paul R. Counterman, New York State Department of Environmental Conservation (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Rocket Propulsion Elements and Subsystems

Informal Interpretations
- August 24, 2000 letter to Mr. Kevin D. Sagis, Paragon Astronautics (pdf KB)

Security Requirements

Informal Interpretations
- March 8, 2004 Letter to Mr. James Thrift, Agricultural Retailers Association
- February 19, 2004 Letter to Mr. Richard Gupton, Agricultural Retailers Association

Shipper

Informal Interpretations
- March 8, 2005 Letter to Mr. Daniel J. Van Kuren, Gebauer Company (pdf 41 KB)
- April 14, 1989 letter to Mr. Clifford J. Harvison, National Tank Truck Carriers, Inc. (pdf KB)
- May 16, 1988 letter to Mr. Clifford H. Harvison, National Tank Truck Carriers, Inc. (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

State Agencies - Transportation By

Informal Interpretations
- June 2, 1994 letter to Mr. David G. Dales, Nebraska Public Power District (pdf KB)

Storage Provisions

Informal Interpretations
- May 16, 1997 letter to Mr. Phillip A. Doyle , Immigration and Human Rights Clinic (pdf KB)
- June 27, 1996 letter to Mr. Michael Pulice, City of Fairbanks, AK (pdf KB)

Towed Vehicles Containing Hazardous Materials

Informal Interpretations
- June 13, 1997 letter to Ms. Cynthia Garcia, City of Fort Worth, TX (pdf KB)

Toxic-By-Inhalation Materials

Informal Interpretations
- June 2, 1987 letter to Mr. Gordon Rousseau, Lawrence W. Bierlein, P.C. (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Transporter

Formal Interpretations
- October 28, 1992 Federal Register, Vol.57, No. 209, Rules and Regulations (pdf KB)

Universities - Transportation By

Informal Interpretations
- January 24, 2001 Letter to Mr. Richard N. Siani and Mr. Michael K. Law of Longmont, Colorado (pdf KB)
- August 12, 1999 letter to Mr. Dave W. Wergin, University of Colorado (pdf KB)
- September 26, 1994 letter to Mr. Michael Shepard, California Environmental Protection Agency (pdf KB)
- April 19, 1994 letter to Ms. Sandra Goldberg, California Department of Justice (pdf KB)
- June 3, 1993 letter to Ms. Jo Ann Williams, U.S. Department of Energy (pdf KB)

Used Packagings - See also "Reuse of Containers/Packagings"

Informal Interpretations
- August 6, 1987 letter to Mr. Paul R. Counterman, New York State Department of Environmental Conservation (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

Waste Streams

Informal Interpretations
- June 2, 1987 letter to Mr. Gordon Rousseau, Lawrence W. Bierlein, P.C. (pdf KB)

Formal Interpretations
- February 26, 1990 Federal Register, Vol 55, No.38, Rules and Regulations (pdf KB)

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