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M1 Process

M1 locks the pre-install package, project payment structure, Supplier Direct Pay treatment, and M1 Approval / Work Order.

Milestone Timing

Field	Detail
Begins When	NTP has been approved and the partner is ready to submit survey, design, BOM, and pre-install materials.
Ends When	MAC issues the M1 Approval / Work Order and the EPC countersigns it.
Common Delay	Production or scope changes require updated PPA/proposal materials before M1 can be approved.

Sequence of Events

NTP approval confirmed
The NTP Approval Notice is treated as a prerequisite for M1.
Design package submitted
Partner submits site survey, design/engineering, BOM, and requested supporting reports.
Change-order review
Residential changes above 10% or commercial changes above 5% require updated PPA/proposal materials.
M1 work order locked
MAC issues the M1 Approval / Work Order and locks payment distribution and Supplier Direct Pay treatment.

Required Documents

Residential
Commercial

Document Status Submitted By Abridged Notes

NTP Approval Notice MAC-generated

Prerequisite

MAC

Triggered by MAC after NTP approval.

Site Survey Report Partner-submitted

Required

EPC

Site conditions and field survey.

Design / Engineering Report Partner-submitted

Required

EPC

Design and engineering package.

Signed PPA Agreement MAC-authored

Conditional

EPC + Property Owner

Updated PPA if change order is required.

Copy of the Proposal Partner-submitted

Conditional

EPC

Updated proposal if change order is required.

Bill of Material (BOM) Partner-submitted

Required

EPC

Domestic Content and FEOC-compliant equipment list.

Property Appraisal External-generated

Conditional

Appraiser

Only if requested by MAC.

Environmental Report External-generated

Conditional

Environmental consultant

Only if requested by MAC.

M1 Approval / Work Order MAC-authored

Required

MAC issues; EPC countersigns

Issued by MAC and countersigned by EPC.