Buy America EV Charger Procurement Checklist: 2026 Edition

# Buy America EV Charger Procurement Checklist: 2026 Edition

If you are buying EV chargers with NEVI or other federal funding, you already know the Build America, Buy America Act applies. What trips projects up is not knowing the rule. It is the verification and documentation chain that auditors expect to see after the money is spent. We have watched buyers lose reimbursement over a missing bill of materials, and we have watched suppliers quietly swap components after certification. This checklist is the process we walk our own customers through when they procure for federally funded projects. Print it, attach it to your RFP, and make your supplier answer every line in writing. For the vendor list, see our Buy America compliant manufacturers overview; this article is the how, not the who.

Why a Buy America checklist: the audit risk is real

BABA compliance is not a one-time claim. It is a documentation chain that runs from the factory floor to your state DOT file, and it can be audited years after installation. The FHWA NEVI Final Rule (2023) requires states to verify domestic content before reimbursement, and state DOTs pass that verification burden down to the project sponsor. If your file contains a supplier's marketing sheet instead of a component-level cost breakdown, you are carrying the risk.

The other reason is that waivers are temporary. FHWA issued phased waivers in the early NEVI years, but they expire and narrow over time (FHWA NEVI Final Rule, 2023; FHWA waiver guidance, 2024). A procurement strategy built on "we will get a waiver" is a strategy built on someone else's deadline. The checklist below assumes no waiver, because that is the only safe assumption in 2026.

A third reason is that responsibility is distributed. The manufacturer knows the BOM. The integrator knows the assembly site. The project sponsor knows the funding terms. The state DOT knows the audit standard. If any one of those parties assumes someone else is keeping the file, the file does not exist when it is needed.

The 10-point checklist

1. Final assembly location

Ask for: The physical address of the facility where the last substantial manufacturing step occurs, plus a description of what happens there.

How to verify: Cross-reference the address against the supplier's business registration and, if possible, schedule a site visit or a live video walkthrough. The assembly site should have production equipment, not just a warehouse with a torque wrench.

Red flag: "Final assembly in the US" turns out to mean unpacking an overseas-built unit, attaching a label, and powering it on. That is not substantial transformation.

2. Domestic content calculation methodology

Ask for: The supplier's methodology for calculating the 55% domestic content threshold, in writing, before you issue a purchase order.

How to verify: BABA measures domestic content by component cost, not retail price and not labor. The methodology should trace to the bill of materials, assign origin to each component, and show the math. If the supplier cannot explain the calculation, the calculation probably does not exist.

Red flag: A percentage quoted without a methodology, or a methodology that counts final assembly labor toward the 55%.

3. Component-level bill of materials

Ask for: A BOM that lists every manufactured component above a de minimis threshold, its country of origin, and its cost share.

How to verify: Spot-check three high-cost items. Power modules, control boards, and enclosures are the usual swing components. Ask for supplier invoices or certificates of origin for those items specifically.

Red flag: The BOM lists "power module, Asia" at a cost share that would make 55% mathematically impossible, yet the summary still claims compliance. We have seen this more than once.

4. Iron and steel certification

Ask for: Mill certificates or a letter from the steel supplier confirming that iron and steel components are produced in the United States.

How to verify: BABA's iron and steel requirement is separate from the 55% calculation. A charger can pass 55% and still fail on steel. Mill certificates should reference the specific product, not a generic company letterhead.

Red flag: The supplier offers a "Buy America compliant" enclosure but cannot produce a mill certificate for the steel.

5. NEVI technical minimums on the same hardware

Ask for: Confirmation that the specific model you are buying meets FHWA NEVI technical minimums: at least 150 kW per port, CCS and NACS connector support, 97% uptime reporting capability, and open payment.

How to verify: Cross-reference the model against the technical specifications in the NEVI DC fast charger specifications article and the NEVI eligible vendor list. A BABA-compliant charger that does not meet NEVI technical minimums is still ineligible for NEVI funding.

Red flag: The supplier offers a 60 kW unit for a NEVI corridor project because "the site only needs 60 kW today."

6. Uptime reporting capability

Ask for: Documentation of how the charger reports uptime, at what granularity, and to which backend.

How to verify: The 97% uptime requirement is measured against a reporting standard, not against a verbal promise. Ask for a sample uptime report from an existing deployment. If the charger speaks OCPP 1.6J or 2.0.1, the reporting path is usually straightforward, but confirm the state DOT accepts the format.

Red flag: "We guarantee 97% uptime" in a contract, with no mechanism for measuring or reporting it.

7. Safety certification for the exact model

Ask for: UL or ETL certificates for the specific models in your quote, with certificate numbers you can verify in the public directory.

How to verify: For DC fast chargers, the applicable standard is UL 2202, 3rd Ed., and the category code should be FFTG. For AC Level 2 equipment, UL 2594:2022 is the standard. Verify the listing is active in UL Product iQ or the Intertek directory. The UL certification overview walks through the verification steps.

Red flag: A certificate that covers a different model family, or a certificate that expired before your delivery date.

8. Warranty and service network

Ask for: The warranty terms, the response time commitment, and the location of spare parts inventory.

How to verify: A BABA-compliant charger with no US service network is a maintenance risk. Ask for the names of existing US customers and the average parts lead time. If the supplier has no US inventory, factor the risk into your uptime calculation.

Red flag: Warranty service requires shipping the unit back to a factory overseas.

9. Documentation chain assignment

Ask for: A written commitment naming the party responsible for assembling and maintaining the compliance file from factory to state DOT.

How to verify: The chain should include the manufacturer's BOM and origin certificates, the distributor's or integrator's assembly records, and your own procurement file. If the supplier says "we provide the charger, you handle compliance," you have just been handed the audit risk.

Red flag: No one can tell you who signs the final compliance certificate that goes to the state.

10. Change notification clause

Ask for: A contract clause requiring the supplier to notify you before substituting any component that affects the domestic content calculation.

How to verify: The clause should specify notification in writing, with an updated BOM and cost analysis, before the substitution ships. Without this, a supplier can swap a US-made control board for an imported one and void your compliance without telling you.

Red flag: The supplier refuses the clause because "our supply chain is stable." Supply chains change. The clause costs nothing if nothing changes.

A note on scoring the responses

Not every checklist item carries the same weight. Items 1 through 4 are the BABA core: if any of them fails, the project fails. Items 5 through 7 are NEVI technical and safety gates. Items 8 through 10 are risk management. When you score proposals, treat a failure on items 1 through 4 as disqualifying, not as a point deduction. A supplier that cannot document final assembly location or domestic content methodology is not a supplier you can fix with a price concession.

Documentation you should receive

A complete procurement file for a BABA-funded charger should contain the following, organized so an auditor can trace any component back to its origin:

• Final assembly affidavit or certification letter with the facility address
• Component-level BOM with country of origin and cost share
• Mill certificates for iron and steel components
• Supplier certificates of origin for major components
• UL or ETL certificate for the exact model, verified in the public directory
• NEVI technical compliance statement covering power, connectors, uptime, and payment
• Sample uptime report format and backend compatibility confirmation
• Warranty terms and US service network details
• Change notification clause signed by both parties

Common compliance failures we have seen

The most frequent failure is the 55% calculation done wrong. Suppliers count final assembly labor, or they count the enclosure at retail markup instead of component cost, and the math collapses under audit. The second most frequent is the steel requirement treated as an afterthought: the enclosure is US-fabricated, but the steel inside it is imported, and no one checked until the state DOT asked for mill certificates.

A subtler failure is model drift. The supplier certifies one configuration, then ships a slightly different one with a different power module or a different control board, and the domestic content percentage changes without anyone recalculating. This is why the change notification clause matters.

The last failure is timing. Buyers assume compliance can be documented retroactively. It cannot. The BOM and origin certificates need to exist at the time of manufacture, and the audit trail needs to be unbroken from that point forward.

How to use this with your RFP

Do not attach this checklist as an appendix and hope suppliers read it. Turn each point into a mandatory response field. Require written answers, not checkboxes. Make the documentation deliverable a condition of final payment, not a post-award courtesy.

If you are writing a NEVI application, the NEVI funding application guide covers the grant side, and the NEVI custom charger spec sheet gives you the technical template to pair with this compliance checklist. For verifying vendor eligibility before you issue the RFP, the NEVI vendor verification guide walks through the directory checks.

The bottom line

Buy America compliance is a procurement process, not a product feature. The charger either meets the requirements at the time of manufacture, with documentation to prove it, or it does not. A checklist forces the supplier to commit to specifics, and specifics are what survive an audit. Use the ten points above, demand the documentation chain, and do not accept "we are compliant" as an answer to a question that asks for a BOM.

If you need a supplier that can walk through every item on this list with documentation in hand, contact our compliance team or review our certifications page for the certificates behind our DC and AC product lines.