# Alaska Airlines — Hazardous Materials Safety Interpretation

**Citation:** 03-0307  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2004-07-09

03-0307 response to Alaska Airlines concerning 175.31.

## Document text

<<<PAGE 1>>>

f Transportatio
.S. Departmer
Washington, D.C. 20590
400 Seventh St., S.W.
Research and
Special Programs
Administration
JUL
9 2004
Ms. Marilyn Dirkx
Ref. No. 03-0307
Alaska Airlines
Box 68900
Seattle, WA 98168-0900
Dear Ms. Dirkx:
This responds to your December 3, 2003, letter requesting clarification on when "acceptance"
takes place relative to § 175.31 discrepancy reporting requirements under the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if, for purposes of
security screening, "acceptance" occurs after the material has been screened and authorized for
transportation, or when the shipper turns the material over to the carrier with the assumption that
it will be transported. Please accept my apology for the delay in responding.
The discrepancy reporting requirement in § 175.31 applies to an aircraft operator that accepts a
shipment of hazardous material that is improperly packaged, marked, labeled, described, or
certified in a manner not ascertainable when the shipment is initially accepted for transportation.
Generally, "acceptance" under the HMR occurs when the shipper (offeror) or his agent turns the
shipment over to the carrier or the carrier's agent, with the assumption that it will be transported.
If a violation of the HMR is discovered after acceptance that was not ascertainable when the
shipment was initially accepted, a discrepancy report is required. The shipment may or may not
pass the security screening process after acceptance has already occurred. If the accepted
shipment later fails the security screening because of unauthorized hazardous materials, a
discrepancy report must also be filed.
Specifically, your five scenarios and questions are paraphrased and answered as follows:
Q1. The airline is authorized to transport non-hazardous cargo from unknown shippers (offerors)
on a passenger aircraft after the cargo has been subjected to a security screening. During the
course of screening, undeclared hazmat is discovered. Has acceptance occurred? The shipper
(offeror) has released the cargo to us, assuming that it will be transported. Does acceptance
occur when we take it from the shipper (offeror), or after we determine that it may be
transported? Does it make a difference in this scenario if the shipper (offeror) tendered the cargo
directly to us, or tendered it to a Domestic Security Integration Program (DSIP) carrier with its
own security plan, such as UPS, who subsequently tenders it to us? In the latter scenario, has
UPS acted as the accepting party, even though the package can't travel until it has been screened
by the air carrier?
030307
175.31

<<<PAGE 2>>>

Al. Acceptance occurs when the shipper (offeror releases the cargo to the airline regardless of
whether the security screening has occurred. If the shipment is first tendered to a DSIP carrier,
such as UPS, for delivery to the airline, the airline is the accepting party for the air shipment, not
UPS. The DSIP air carrier as well as the subsequent passenger air carrier have, separately,
accepted the shipment.
Q2. A piece of non-hazardous cargo is required to undergo security screening before it is
transported. We do not complete the air waybill paperwork until after screening, and require the
shipper (offeror) to remain at our facility when the piece is being screened. Undeclared hazmat is
found. Has acceptance occurred, even though the air waybill has not been executed and the
shipper (offeror) is still on the premises?
A2. In this scenario, since you require the shipper (offeror) to remain on the premises and are
able to reject the shipment and return it to the shipper, acceptance has not occurred.
Q3. A piece of non-hazardous material cargo is required to undergo security screening before it
is transported. The cargo comes to us from a freight forwarder, who drops off the cargo and does
not wait for screening to be completed. During the course of screening, undeclared hazardous
material is found. Has acceptance occurred, even though the piece isn't authorized for
transportation until after it has been security screened? Since the shipper (offeror) has released
control of the shipment to the freight forwarder, has the freight forwarder accepted for § 175.31
discrepancy reporting purposes? Does it make a difference if the air waybill has been signed by
our employee or not, whereby the signature completes the acceptance process on our part?
A3. Acceptance occurs when the airline takes possession of the shipment from the freight
forwarder, even though security screening has not been completed. The air carrier has accepted
the shipment for discrepancy reporting purposes, regardless of whether the air waybill has been
signed by the airline employee.
Q4. A shipper (offeror) offers a non-hazardous material package to our representative, who
provides our pick-up and delivery service. Our representative accepts the package and completes
an air waybill on our behalf. However, the package isn't authorized for transportation until it has
undergone security screening. Is it considered accepted when our representative takes possession
of it from the shipper (offeror)?
A4. Yes, acceptance occurred when your representative took possession of the shipment from
the shipper (offeror), regardless of whether the security screening has taken place.
Q5. We take possession of a hazardous material shipment, but rather than run it through our
checklist right away we place it in a conditional acceptance storage location. Later, we run our
checklist on it and discover a compliance violation. Has acceptance occurred since we are in
2

<<<PAGE 3>>>

possession of the shipment? Or does acceptance not occur until we subject the shipment to our
acceptance checklist?
A5. Acceptance has occurred, and the discrepancy is reportable if it meets the criteria in
§ 175.31(b), even though you have not yet completed your inspection in accordance with
§ 175.30.
For guidance as to when acceptance occurs for hazardous materials in passenger baggage, please
refer to the enclosed formal interpretation published under Docket RSPA-2003-14424, Notice
No. 03-2 (68 FR 9735).
I hope this answers your inquiry.
Sincerely,
Side T. Mozulle
Edward T. Mazzullo'
Director, Office of Hazardous
Materials Standards
Enclosure

<<<PAGE 4>>>

DEC-02-03
04:23PM
FROM-Al aska Airlines
206 433 3366
T-060
P.001/002 F-515
Alaska Airlines
Boothe
Ms. Susan Gorsky
Office of Hazardous Materials Standards
$175.31
202-366-3012
Total pages: 2
Air
Decomber 3, 2003
#03-8307
Dear Ms. Gorsky,
A particular situation recently occurred, and with the upcoming changes to cargo security
procedures, I am searching for clarification on when 'acceptance' takes place relative to
49CFR 175.31 discrepancy reporting requirements. I'm not sure who is the best person to
address these questions to, but since they relate somewhat to HM-223, I will begin my
search for clarification with you.
If a shipper tenders a shipment, but that shipment must undergo security screening prior
to air travel, does acceptance occur after the item has been screened and deemed to be
authorized to travel? Or does acceptance occur when the shipper turns the item over to
the carrier, with the assumption that it will be transported?
Below are a few scenarios where we need clarification on when acceptance has occurred.
/ • Currently, in the State of Alaska, we are allowed to transport cargo from unknown
shippers on a passenger aircraft after the cargo has been subjected to a security
screening process. During the course of screening, undeclared hazmat is discovered.
will travel, but we can't transport it until after we screen it. So do we 'accept' it when
Has acceptance occurred? The shipper has released the cargo to us, assuming that it
we take it from the shipper, or after we determine that it may travel? Does it make a
difference in this scenario if the shipper tendered the cargo directly to us, or tendered
it to a DSIP carrier with its own security plan, such as UPS, who subsequently tenders
it to us? In the latter scenario, has UPS acted as the accepting party, even though the
backage can't travel until it has been screened by the air carrier?
A piece of cargo is required to undergo security screening before it is transported. We
do not complete the air waybill paperwork until after screening, and require the
shipper to remain at our facility while the piece is being scrcened. Undeclared hazmat
is found. Has acceptance occurred, even though the air waybill has not been executed
and the shipper is still on the premises?
3
• A piece of cargo is required to undergo security screening before it is transported.
The cargo comes to us from a freight forwarder, who drops off the cargo and does not
BOX
68900
SEATTLE,WA 28168:0800/206-433-3200

<<<PAGE 5>>>

DEC-02-03
04: 23PM
FROM-Alaska Airlines
206 433 3366
T-060 P.002/002 F-515
wait for screening to be completed. During the course of screening, undeclared
hazmat is found. Has acceptance occurred, even though the piece isn't authorized for
travel until after it has been screened? Since the shipper has released control of the
discrepancy reporting purposes? Does it make a difference if the air waybill has been
shipment to the freight forwarder, has the freight forwarder 'accepted' it for 175.31
signed by our employee or not, whereby the signature completes the 'acceptance'
process on our part?
A shipper offers a package to our representative, who provides our pick-up and
5.
than run it through our checklist right away we place it in a 'conditional acceptance'
One last scenario. We take possession of a hazardous materials shipment, but rather
torage location. Later, we run our checklist on it and discover a compliance
riolation. Has acceptance occurred since we are in possession of the shipment? Or
does acceptance not occur until we subject the shipment to our acceptance checklist?
I realize some of these scenarios are a bit complicated. Please feel free to call if you
(Phone and fax number and e-mail address below.)
would like to discuss them, or need further clarification. I am also reachable by e-mail
Thank you for your assistance.
Sincerely,
Dahl
Marilyn Dirk
Tel: 206-392-5442
Manager, Dangerous Goods Compliance
Fax: 206-392-52:25
E-mail: marilyn.dirkx@alaskaAir.com

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030307.pdf>
- Source ID: `phmsa`
- SHA-256: `580f368baa73bf0b69ff65b5f710e8d5f8dea19864231c035d17a08c1010477a`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-21T23:37:52.587Z
- Document slug: `phmsa-interpretation-03-0307`

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