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Joint letter providing an update on engagement between the Government of the Northwest Territories and Pehdzéh Kı̨́ First Nation.
A notice of proceeding granting the GNWT's extension request.
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
Note: MVEIRB IRs 50, 51, and 58 will be answered in the DAR addendum. The GNWT is not responsible for MVEIRB IR 23. MVEIRB IRs 41-49 were directed to parties who were not legally required to answer.
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
Note: MVEIRB IRs 50, 51, and 58 will be answered in the DAR addendum. The GNWT is not responsible for MVEIRB IR 23. MVEIRB IRs 41-49 were directed to parties who were not legally required to answer.
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
The developer (GNWT) answered all information requests from Round 2 on June 16, 2025.
Most answers are in the table titled 'Reviewer Comments and Proponent Responses - June 16 2025' (PR390).
Answers/Attachments are also posted on the registry under the following names:
- IR responses to CanNor IRs 1-12 (PR366, posted in April)
- IR responses to LKFN 1-49 (PR367, posted in April)
- IR responses to LKFN 44 – maps (PR368, posted in April)
- IR responses to PKFN IRs 1-8 (PR369, posted in April)
And
- IR responses to DRCC 1-3 (PR391)
- IR responses to GTC 1-14 (PR392)
- IR responses to SRRB IR 1-3 (PR393)
- IR responses to MVEIRB 11-34 (PR394)
- Attachments - answers to MVEIRB IRs 35-40 (PR335, posted in February)
- IR responses to MVEIRB 52-65 (PR395)
The GNWT requests an extension to submit the DAR addendum in October 2025.
Public summaries of confidential Indigenous Knowledge documents submitted by the Pehdzéh Kı̨́ First Nation. The three documents are:
- “Some PKFN Land Use and Occupancy along MVH Winter Road Route in the Dehcho”
- “Some PKFN Indigenous Knowledge about MVH Watercrossing Areas in the Dehcho”
- “Some PKFN Moose and Caribou Harvesting along MVH Winter Road Route in the Dehcho”.
Parties can view Pehdzeh Ki First Nations Confidential Information via an agreement with the Review Board. Non-confidential summaries of the Confidential Information are on the public registry.
Letter with the Review Board's decision on Łı́ı́dlı̨ı̨ Kų́ę́ First Nation's Request for Ruling to accept confidential Indigenous Traditional Knowledge.
In response to the Mackenzie Valley Environmental Impact Review Board’s (the Review Board) January 23, 2025, ‘Directive to the GNWT to provide and analyse mitigation for the Mackenzie Valley Highway Project, Government of the Northwest Territories’ (PR318), which instructed the GNWT to “...clearly describe options for mitigating impacts…”, GNWT provided the Supplemental filing; Socio-Economic (Table 1) and Biophysical (Table 2) Mitigation Tables for the Mackenzie Valley Highway Project (EA1213-02).
Notification of Upcoming Extension Request for the DAR Addendum
Meeting with developer about DAR Addendum and EA timelines
Correspondence: PKFN to MVEIRB: Updates Concerns
PKFN respects LKFN’s right and responsibilities to protect sensitive Dene knowledge, and understands the importance of providing information for the Review Board’s consideration
Letter from Enbridge supporting PKFN's Proposed Alternative Realignment.
The Review Board received a request for ruling to accept confidential Traditional Indigenous Knowledge from Liidlii Kue First Nation. Parties have until May 23 to provide any comments for the Review Board to consider when making its decision.
Liidlii Kue First Nation's Request for Ruling to accept confidential Indigenous Knowledge in written form.
Comments on Proposed Realignment of MVH from Wrigley to Blackwater.
Information from PKFN on moose and caribou: Indigenous Knowledge, concerns, and recommendations.
Land management information from PKFN:
- response to MVEIRB IR 44
- response to MVEIRB IR 49
- response to technical session request
- map of areas to protect
IR round 2: GNWT responses to PKFN IRs 1-8. The responses can also be accessed on the Online Review System.
IR round 2: GNWT responses to LKFN 44 (additional maps). The responses can also be accessed on the Online Review System.
IR round 2: GNWT responses to LKFN 1-49. The responses can also be accessed on the Online Review System.
IR round 2: GNWT responses to CanNor IRs 1-12. The responses can also be accessed on the Online Review System.
Email attachment - LKFN comments to GNWT IR responses, in the Online Review System Table
LKFN comments to GNWT IR responses posted on the Online Review System.
PKFN suggests it would be helpful for parties to know what GNWT plans to do during the two-month extension.
A notice of proceeding granting the GNWT's extension request.
The Review Board's decision on PKFNs request for the Review Board to accept confidential TK information.
Letter from GNWT to MVEIRB requesting a 2 month extension to submit the DAR Addendum and the remaining IR responses.
Notice of Proceeding from the Review Board indicating that the Board will retain former Board member Brenda Gauthier as a special advisor for this environmental assessment.
Note to file describing when the Review Board will release more information about the timeline, workplan, and public hearing phase of the MVH EA.
Letter from NPMO to the Review Board asking for clarification on the upcoming procedural matters for MVH.
Letter from the Review Board to TG asking about lessons learned from the Tłı̨chǫ Highway.
GNWT Response to MVEIRB Directive: 'Directives to provide timely responses and a concordance table in the DAR Addendum’ (PR347)
DGG email re PKFN request for ruling. Todd Slack sent the email. DGG has no comment on the Request for Ruling.
GTC response to PKFN Request for Ruling. GTC has no concerns with the request.
Notice of Proceeding - MVH Community Session in Fort Good Hope on April 9, 2025.
PR348 GNWT Response to MVEIRB Notice of Proceeding regarding Pehdzeh Ki First Nation’s Request for Ruling to have the Review Board accept their confidential Indigenous Knowledge in written form. The Government of the Northwest Territories has no issue with the Request for Ruling.
Letter from the Review Board to GNWT with two directives regarding IR timelines and the DAR addendum.
The Review Board received a request for ruling to accept confidential Traditional Indigenous Knowledge from Pehdzeh Ki First Nation. Parties have until March 31 to provide any comments for the Review Board to consider when making its decision.
ECCC and GNWT met on February 5th and 7th, 2025, to discuss our IRs related to Caribou and Migratory Birds.
ECCC and GNWT met on February 5th and 7th, 2025, to discuss our IRs related to Caribou and Migratory Birds.
Pehdzeh Ki First Nation's Request for Ruling to accept confidential Indigenous Knowledge in written form.
The Pehdzeh Ki First Nation (PKFN) is concerned that the current workplan timelines may prevent meaningful consultation and accommodation for PKFN.
Note to File - Discussion between PKFN and the Review Board about sharing confidential information (Traditional Land Use Study)
PR340 GNWT Response to February 14 Notice of Proceeding allowing the GNWT to respond to information request responses provided by Indigenous Governments and Indigenous organizations regarding the highway alignment.
PFKN and the Review Board discussed EA procedural matters, requests for rulings, and the confidential handling of Indigenous Traditional Knowledge.
The Mackenzie Valley Alternate Highway Route Alignment: A Study on Physical Viability. Prepared for Wrigley Community, Chief and Council, by Maskwa Engineering Ltd./Delta Engineering Ltd.
PR375 Correspondance PKFN to RB - Alternate Route Study cover letter - March 4, 2025. Linked to
Correspondence from PKFN - MVH Alternate Route Alignment Study (PR338).
Sahtú Renewable Resource Board Information Request from January 17, 2025.
This information request is missing from the Information Request Table (PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table), so it is posted as a separate document.
Letter from PKFN to the Review Board asking that a hearing be held at Pehdzeh Ki First Nation in Wrigley.
Note to file about the meeting between the GNWT and Review Board staff on February 12, 2025, regarding the letter accompanying the Review Board's information requests (Round 2).
Government of Canada Cover Letter and responses to two information requests (Round 2): GTC IR #15 (Project Benefits to National Security and Arctic Sovereignty) and SRRB IR #1 (Fish Passage and Fish Habitat).
Cover letter from the GNWT regarding the second round of information requests (IRs). The GNWT answered 49 IRs and is working on answering the remaining IRs “as soon as practicable.”
Parties and the Review Board submitted a total of 153 IRs during Round 2. Of the 153 IRs, 138 answers were due on February 28, and 15 other answers are due on April 11, 2025.
The table contains the preamble and information requests from parties and the Review Board. Most of GNWT's answers were provided as attachments, which are grouped by parties on the Public Registry.
Attachments - answers to SRRB IR 1.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
Attachments - answers to MVEIRB IRs 35-40.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
Attachments - answers to LKFN IRs 1,3,4,6,7,13-16,18-25.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
Attachments - answers to GTC IRs 8, 10,13,14.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
Attachments - answers to CanNor IRs 1-3,6.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
Attachment - answer to MVEIRB IR 14.
See PR329 GNWT cover letter with Reviewer IRs and Proponent Responses table for more information regarding the remaining answers to information requests.
The DAR Addendum deadline has been moved from the end of March to April 11, 2025.
Correspondence between Pehdzéh Kį First Nation (PKFN) and the Review Board. The letter outlines that PKFN has not yet shared information regarding their land use, sensitive locations, and preferred alternative route because of confidentiality concerns.
This notice of proceeding provides notice that the GNWT has until March 7, 2025, to provide comment on Information requests directed to Indigenous Governments and organizations.
Response from Tulita Working Groups to MVEIRB-8 about routing.
PKFN's answer to the Review Board's IRs regarding routing issued to Indigenous parties in December 2024.
The Review Board hired an expert advisor to advise on geotechnical issues. His resume is available in PR302 Notice of Proceeding - retention of expert advisor_2024_Oswell.
Some of the information requests submitted on the Online Review System on January 17, 2025 were updated during the week of January 20, 2025.
This letter accompanies Round 2 of information requests issued by the Review Board to GNWT on the Online Review System.
Technical sessions were held in November 2024. Outstanding questions were posted on the Online Review System in December 2024. Answers were provided by the GNWT in January 2025.
Case studies (answer to PKFN 1) are provided in a separate Registry document.
Attachments to outstanding questions and answers from the technical sessions (case studies provided by GNWT as the answer to PKFN 1)