# Arent Fox Kintner Plotkin Kahn, PLLC — Hazardous Materials Safety Interpretation

**Citation:** 99-0124  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1999-12-07

99-0124 response to Arent Fox Kintner Plotkin Kahn, PLLC concerning 173.134.

## Document text

<<<PAGE 1>>>

...:-
U.S.Department
400 Seventh Streel, S.W.
of Transportation
Nashington, D.C
20590
Research and
Special Programs
Administration
DEC 7 1999
Mr. Paul Jackson Rice
Ref. No. 99-0124
Arent Fox Kintner Plotkin & Kahn, PLLC
1050 Connecticut Avenue, N.W.
Washington, D.C. 20036
Dear Mr. Rice:
This responds to your letters of May 10 and September 7, 1999, and telephone conversations
with Ms. Eileen Mack of my staff, concerning the transportation requirements applicable to
used sharps under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Please accept my apology for our delay in answering your inquiries.
Sharps are objects that can penetrate the skin, such as needles, scalpels, broken glass, broken
capillary tubes, and exposed ends of dental wires. Used sharps that are not contaminated
with an infectious substance or any other material meeting one of the hazard classes defined
in the regulations are not subject to the HIMR.
For purposes of the HMR, used sharps that are contaminated with an infectious substance
are considered regulated medical waste, Division 6.2. Regulated medical waste is a waste or
reusable material, other than a culture or stock of an infectious substance, that contains an
infectious substance and is generated in: (1) the diagnosis, treatment, or immunization of
human beings or animals; (2) research pertaining to the diagnosis, treatment, or
immunization of human beings or animals; or (3) the production or testing of biological
products. A package containing a regulated medical waste is subject to the HMR, whether
or not that regulated medical waste is commingled with non-regulated waste. Regulated
medical waste must be packaged in packagings conforming to the requirements of Part 178
of the HMR at the Packing Group II performance level. In addition, the packagings must be
rigid, leak resistant, impervious to moisture, of sufficient strength to prevent tearing or
bursting under normal conditions of use and handling; sealed to prevent leakage during
transport; puncture resistant for sharps; and break resistant and tightly lidded or stoppered
for fluids in quantities greater than 20 cubic centimeters (see § 173.197).
The HMR include several exceptions applicable to the transportation of regulated medical
waste. For example, a regulated medical waste that is transported by a private or contract
carrier is excepted from the requirement that it be labeled with an INFECTIOUS
SUBSTANCE label provided that the outer packaging is marked with a BIOHAZARD
marking in accordance with the regulations of the Occupational Safety and Health
173.184
990124

<<<PAGE 2>>>

2
Administration (OSHA) governing bloodborne pathogens (29 CFR 1910.1030). A regulated
medical waste that is transported by a private or contract carrier is also excepted from the
specific packaging requirements of § 173.197 provided it is packaged in a rigid, non-bulk
packaging that conforms to the general packaging requirements in §§ 173.24 and 173.24a
and the packaging requirements specified in 29 CFR 1910.1030.
Medical equipment that meets the definition of a Division 6.2 material and is prepared for
transportation in conformance with the OSHA requirements in 1910.1030(d)(2)(xiv) is not
subject to any of the requirements in the HMR (see § 173.134(b)(1)(iii). This OSHA
provision applies to equipment that has been decontaminated to the fullest extent practicable.
This exception was incorporated into the HMR in 1995 to relieve generators of regulated
medical waste from the burden of complying with both the HMR and the OSHA regulations.
For a discussion of the reasons for and applicability of this exception, see the preamble to
the final rule published September 20, 1995 (60 FR 48780). The exception applies to
medical equipment that is intended for reuse. The exception does not apply to medical
equipment that is being transported for disposal. For purposes of this exception, medical
equipment includes equipment used for diagnosis, research, or treatment, such as reusable
surgical equipment or equipment used for testing where the components within which the
equipment is contained essentially function as packaging. Used sharps are not considered
medical equipment for purposes of this exception.
I hope this information is helpful. If you have further questions, please do not hesitate to
contact this office.
Sincerely,
Elwar 7. Marg
Edward T. Mazzullo
Director, Office of Hazardous Materials Standards

<<<PAGE 3>>>

Ill Arent Fox
ATTORNEYS AT LAW
Paul Jackson Rice
Arent Fox Kintner Plotkin & Kahn, PLLC
Direct 202/857-6009
1050 Connecticut Avenue, NW
Washington, DC 20036-5339
ricepi@arentfox.com
Phone 202/857-6000
Fax 202/857-6395
www.arentfox.com
September 7, 1999
VIA FACSIMILE AND U.S. MAIL
Director, Office of Hazardous Materials Standards
Edward Mazzullo
Research and Special Programs Administration
400 7" Street, S.W.
Washington, D.C. 20590
RE: Request for Regulatory Interpretation - 49 C.F.R. § 173.134
Dear Mr. Mazzullo:
This letter follows up on my May 10, 1999 letter that requested a regulatory interpretation of 49
C.F.R. § 173.134 from the Research and Special Programs Administration ("RSPA"). The May
10, 1999 letter (a copy of which is enclosed for your convenience) sought guidance with respect
to the circumstances under which used medical instruments that are sharp, such as scalpels and
needles (hereinafter, "used sharps") are subject to the Hazardous Materials Regulations
("HMR"). As of today, we are not in receipt of any formal response from your office.
While checking on the status of our request, we were put in contact with Ms. Eileen Mack, the
conversation between Ms. Mack and Adam Cramer, one of my associates, Ms. Mack advised that
RSPA technical writer assigned to handle the matter. During a June 29, 1999 telephone
RSPA's response to our request was still in draft form, and that the draft response may still need
to be reviewed by RSPA counsel. Ms. Mack explained that the regulation at issue, 49 C.F.R. §
173.134, was complex and also contained certain references to Occupational Safety and Health
Administration ("OSHA) regulations. Ms. Mack encouraged us to contact her again to check on
the status of the draft response.
Subsequent to our June 29, 1999 phone conversation, we received a voice-mail message from
Ms. Mack advising us that because of the OSHA reference in 49 C.F.R. § 173.134, OSHA would
be in a better position to respond to our request for regulatory interpretation. Indeed, Ms. Mack
even provided a name and telephone number of an individual at OSHA. While we do appreciate
Ms. Mack's efforts, we hesitate to rely on an OSHA interpretation of a RSPA regulation.
1/
Subsequent to Ms. Mack's voice-mail, we attempted, unsuccessfully, to contact her.
WASHINGTON, DC
NEW YORK
RIYADH
BUDAPEST
BUCHAREST

<<<PAGE 4>>>

Arent Fox
Edward Mazzullo
September 7, 1999
Page 2
We are particularly interested in a written response from your office given RSPA's long running
and that RSPA, rather than OSHA, is the agency responsible for enforcing the HMR. Therefore,
practice of helping the regulated community by providing written interpretations of the HMR,
we respectfully request that RSPA either provide the regulatory interpretation originally sought in
the May 10, 1999 letter, or advise us in writing that RSPA will defer to all aspects of OSHA's
interpretation of 49 C.F.R. § 173.134, whatever those interpretations may be.
This issue is of consequence to a client, and a prompt response would be greatly appreciated
Please contact me, or Adam Cramer (202/857-6414) if we can be of any assistance to you in this
request.
Sincerely
Tau
Paul Jackson Rice
cc:
Adam B. Cramer, Esq.
Eileen Mack

<<<PAGE 5>>>

Маск
Ill Arent Fox
$173.134
ATTORNEYS AT LAW
Paul Jackson Rice
99-0124
Arent Fox Kintner Plotkin & Kahn, PLLC
Direct 202/857-6009
I050 Connecticut Avenue, NW
Washington, DC 20036-5339
ricepi@arentfox.com
Phone 202/857-6000
Fax 202/857-6395
www.arentfox.com
May 10,1999
VIA FACSIMILE AND U.S. MAIL
Edward Mazcullo
Director, Office of Hazardous Materials Standards
Research and Special Programs Administration
400 7' Street, S.W.
Washington, D.C. 20590
RE: Request for Regulatory Interpretation - 49 C.F.R. § 173.134
Dear Mr. Mazcullo:
The purpose of this letter is to request a regulatory interpretation of 49 C.F.R. § 173.134 from the
Research and Special Programs Administration ("RSPA"). More specifically, we are interested
in the circumstances under which used medical instruments that are sharp, such as scalpels and
needles (hereinafter, "used sharps") are subject to the Hazardous Materials Regulations
("HMR"). To further focus this request, we pose the following three questions:
(1)
Are used sharps that do not contain an infectious substance subject to the HMR?
(2)
Are used sharps that are believed to contain an infectious substance, but handled
and transported consistently with the Occupational Safety and Health
Administration ("OSHA") regulations pertaining to blood-borne pathogens, 29
C.F.R. § 1910.1030, exempt from the HMR?
(3)
If used sharps that contain an infectious substance are commingled with other
used sharps, and the aggregate collection of used sharps is handled and
transported consistently with 29 C.F.R. § 1910.1030, is this commingled
Our reading of the HMR suggests that used sharps free from infectious substances are not subject
to the HMR, and that if used sharps contain an infectious substance, such used sharps are exempt
from the HMR to the extent they are handled and transported according to 29 C.F.R. §
1910.1030. The analysis that supports our reading of the HMR follows.
WASHINGTON, DC
NEW YORK
RIYADH
BUDAPEST
BUCHAREST

<<<PAGE 6>>>

Arent Fox
Edward Mazcullo
May 10, 1999
Page 2
Regulated Medical Waste
The HMRs define Regulated Medical Waste ("RMW") in pertinent part:
(4) A regulated medical waste means a waste or reusable material ... that contains an
infectious substance and is generated in —
(i) The diagnosis, treatment or immunization of human beings or animals."
not considered a hazardous material under the HMR.
Exceptions Under the HMR for Regulated Medical Waste
Although used sharps that contain an infectious substance fit the HMR definition of RMW, there
appear to be significant regulatory exceptions if the used sharp is handled and transported
according to certain OSHA regulations. Section 173.134(b) provides in pertinent part:
(1) The following are not subject to any requirements of this subchapter if the items as
packaged do not contain any material otherwise subject to the requirements of this
subchapter:
...
(ii) Laundry or medical equipment that conforms to 29 CFR 1910.1030 of the
regulations of the Occupational Safety and Health Administration of the
Department of Labor 3
It appears that a used sharp that contains an infectious substance, and thus is a RMW under the
HMR, is nonetheless exempt from the HMR if handling and transportation of the used sharp
conforms with OSHA regulations at 29 C.F.R. $ 1910.1030. Indeed, it seems that when
transporting used sharps that meet the definition of RMW, a regulated entity is effectively given
a "choice" to follow either the HMR or the OSHA regulations at 29 C.F.R. § 1910.1030.
49 C.F.R. § 173.134(a)(4) (1998).
Infectious substance is defined under the HMR at 49 C.F.R. § 173(a)(1) (1998).
3/
49 C.F.R. § 173.134(b)(1) (1998).

<<<PAGE 7>>>

Arent Fox
Edward Mazcullo
May 10, 1999
Page 3
The exception at 49 C.F.R. § 173.134(b)(1) is conditioned on the requirement that materials
being transported not contain any "material otherwise subject to the requirements of this
subchapter." We interpret this condition as applying to circumstances where the RMW has some
additional attribute (other than containing an infectious substance) that makes it a hazardous
material under the HMR such as, ignitability or corrosivity. Indeed, reading the condition any
other way would appear to make the entire exception in 49 C.F.R. § 173.134(b) superfluous.
Commingling
If the transportation of used sharps that contain an infectious substance, regardless of OSHA
sharps (some of which contain an infectious substance, some of which do not) would be treated,
compliance, is not excepted from the HMR, then it appears that a commingled package of used
as far as the HMR are concerned, as RMW.
Conclusion
In short, it appears that used sharps that do not contain an infectious substance do not meet the
HMR definition of a RMW, and thus are not subject to the HMR. Used sharps that contain an
infectious substance meet the definition of RMW, but if such used sharps are handled and
transported consistently with OSHA regulations regarding blood-borne pathogens, they are
excepted from the HMRs. Please advise whether our interpretation (and the reasoning
underlying the same) of 49 C.F.R. § 173.134 is accurate. İf our interpretation is incorrect, please
explain RSPA's interpretation of 49 C.F.R. § 173.134.
Please contact me, or Adam Cramer (202/857-6414) if we can be of any assistance to you in this
request.
Sincerely,
Jait
Paul Jackson Rice
cc:
Adam B. Cramer, Esq.

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/1999/990124.pdf>
- Source ID: `phmsa`
- SHA-256: `f1ddc91a66968b9f1c6929eaf94b261e9c5062cd7680fc4d44060669a1ad918b`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T07:47:21.442Z
- Document slug: `phmsa-interpretation-99-0124`

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