A grant stop work order lands in your inbox and every dollar you spend from that moment is suspect. That is the core mechanic most recipients miss: the order does not end your award, it quarantines your costs. Under 2 CFR § 200.343, costs from financial obligations incurred during a suspension are unallowable unless the agency expressly authorizes them — or unless they pass a specific two-part test. Meanwhile, OMB’s proposed rewrite of the grant rules would hand every federal agency a standing power to suspend any award for up to 90 days whenever suspension is “in the interest of” the agency. The recipients who come out whole are not the ones who freeze in place. They are the ones who sort their spending into the right buckets in the first 48 hours and build the paper trail that gets the stranded costs paid.

A Grant Stop Work Order Is a Cost Quarantine, Not a Termination

Terminations and stop work orders get discussed together, but they run on different machinery. A termination ends some or all of the award and triggers closeout. A stop work order — formally a suspension — pauses performance while the award stays alive. That distinction controls everything about how you respond. In a termination, you wind down and settle. In a suspension, you are holding a position: keeping the project restartable while spending as close to zero as the facts allow, because most new spending during the pause will not be reimbursed.

The pause power is also about to get more formal. OMB’s proposed overhaul of the Uniform Guidance adds a new § 200.340(e) that lets an agency issue a written order temporarily suspending an award for up to 90 days when it determines a suspension is in the agency’s interest, with extensions only by mutual agreement, according to Potomac Law’s analysis of the proposed rule. The same provision obligates recipients to stop work and take reasonable steps to minimize costs. In other words, what agencies have been doing ad hoc since early 2025 would become a standard clause in discretionary awards — which makes the response playbook below permanent equipment for anyone holding federal grant funding, not crisis-only knowledge.

One more piece of context matters: suspensions are being contested, and recipients sometimes win. On August 4, a federal appeals court upheld an injunction blocking EPA from clawing back $20 billion in frozen climate grants, finding the agency likely exceeded its authority by terminating awards over a policy disagreement. A stop work order is not necessarily the last word. But challenging one is a months-long track, and your cost discipline during the pause determines what you recover on either track.

The Two-Part Test That Decides What You Can Still Charge

Section 200.343 sounds absolute — costs during suspension are unallowable without express authorization — but it contains a two-part exception that does most of the work in practice. Costs incurred during the pause remain allowable if (a) they flow from financial obligations you properly incurred before the effective date of the suspension, and not in anticipation of it, and (b) they would have been allowable had the award simply run its normal course.

Read that as a timestamp test plus a motive test. A lease you signed six months ago keeps accruing rent during the pause: obligation predates the order, so the rent is defensible. A bulk equipment order you rushed out the door the morning after the order arrived: incurred in anticipation, unallowable. The University of Washington’s post-award compliance office puts the operational rule plainly — costs incurred after the suspension date are high-risk and unallowable unless specifically approved in writing, while costs properly incurred and charged before that date stay allowable.

Two practical consequences follow. First, the effective date in the order is the single most important fact in the document — costs on one side of it are presumptively fine, costs on the other side need a theory. Second, “express authorization” is worth asking for. Agencies can approve continuing costs in the suspension notice or afterward, and a same-week written request — naming the specific costs you cannot stop and the dollar exposure — forces the agency to either authorize them or own the refusal in writing. Either answer improves your position.

Payroll, Subawards, Leases, Indirect Costs: Sorting the Ledger

The two-part test is abstract until you run your actual budget through it. Category by category, here is how the analysis tends to land.

Personnel. Staff time charged to the award for work performed before the effective date is safe. After the date, direct-charging salaries for people with no performable work is the classic unallowable cost. Your options are reassignment to other funding, leave, or — where shutdown truly cannot be immediate — documenting why. The cost principles in 2 CFR § 200.472 recognize that costs a recipient cannot discontinue immediately, despite all reasonable efforts, are generally allowable; costs that continue because of negligent or willful failure to cut them off are not. The phrase “despite making all reasonable efforts” is a documentation assignment: keep the memos showing what you tried.

Subawards. Flow the stop work order down to every subrecipient in writing the day it arrives, with explicit instructions on what stops and when. Every day a subrecipient keeps working in ignorance is spending on your award that you may eat. Settlement and termination costs of subawards are themselves generally allowable settlement expenses under § 200.472 — but only for subs you actually stopped.

Leases, equipment, and non-cancelable commitments. Rent on unexpired leases, storage, idle-equipment costs, and restocking charges on canceled orders are the textbook examples of recoverable suspension costs, precisely because the underlying obligations predate the order. Inventory them early; they anchor the claim.

Indirect costs. Indirect recovery rides on the direct base, so a pause shrinks it mechanically. If a suspension threatens to stretch past its stated window, the cash-flow hit compounds — a reason organizations that depend on one or two federal awards should be building a broader pipeline of funding opportunities before they need it, not after.

The Paper Trail That Turns Stranded Costs Into a Paid Claim

Recovery is an evidence game. Practitioners who handled the 2025 wave of pauses converge on the same short list. Acknowledge the order in writing and give notice — promptly — that you consider it a stop work order with cost and schedule impacts, which preserves the claim posture from day one. Segregate suspension-related costs in your accounting system under a dedicated code, with a narrative for each entry explaining why the cost continued. Photograph the status of work, inventory materials on hand, and record where every subaward stood on the effective date. Track the calendar: cost-recovery practice drawn from the contract side treats claims as due within roughly 30 days of an order’s cancellation or expiration, and grant-side deadlines will live in your award terms — find them the week the order arrives, not the week it lifts.

Then keep asking questions. Ambiguity in a stop work order is common and dangerous: does it cover the whole award or named tasks? Reporting obligations too? A written request for clarification protects you from over-stopping (killing recoverable activity unnecessarily) and under-stopping (incurring unallowable costs). If your team has never built a termination-contingency file, this is a place where experienced help pays for itself — the grant professionals in the OpenGrants network have lived through the recent cycle of freezes and restarts, and a few hours of structure at the start of a suspension routinely saves five figures at settlement.

Restart deserves its own line item. When an order lifts, costs of remobilizing — rehiring, re-procuring, schedule compression — are frequently larger than the costs of the pause itself. Your notice letter should reserve the right to claim restart impacts, and your restart plan should be written before the agency calls.

Where the 90-Day Suspension Power Goes From Here

The proposed Uniform Guidance rewrite has not landed yet, and its timing is genuinely unsettled — the targeted effective date has been caught up in the broader appropriations fight, and litigation over 2025-26 terminations keeps redrawing the boundaries of what agencies may do. A federal district court ruled in July that agencies cannot cancel awards based on priorities invented after the award was made, and the appellate win for the EPA grantees points the same direction. The suspension authority, though, is the piece of the proposal drawing the least legal fire: a written order, a 90-day cap, a duty to minimize costs. Some version of it is very likely to be standard in new award terms. Recipients tracking the rulemaking alongside our coverage of federal grants policy news should assume future awards will carry an explicit pause clause and read it before signing — the cap, the extension mechanics, and the cost-authorization language vary in ways that matter.

For nonprofits, the planning implication is blunt: any single federal award can now go quiet for a quarter on an agency’s signature. Boards and finance committees should stress-test cash reserves against a 90-day revenue pause on their largest award — the same discipline our nonprofit funding hub urges for termination risk applies one notch earlier on the severity scale.

Frequently Asked Questions

Is a grant stop work order the same as a termination?

Q: Is a grant stop work order the same as a termination?
A: No. A stop work order suspends performance while the award remains in force; a termination ends the award (in whole or part) and triggers closeout. The cost rules overlap — 2 CFR § 200.343 governs both — but your posture differs: in a suspension you preserve restartability and minimize spend; in a termination you wind down and settle. A suspension can convert into a termination later, which is why documentation from day one matters.

Can I keep paying staff during a stop work order?

Q: Can I keep paying staff during a stop work order?
A: You can pay them; the question is whether the award reimburses it. Salaries for suspended work charged after the effective date are generally unallowable unless the agency authorizes them or you can show the cost could not be discontinued immediately despite reasonable efforts. Reassign staff to other funding where possible, ask the agency in writing to authorize essential continuing personnel, and document every mitigation step.

What costs are recoverable after a suspension ends?

Q: What costs are recoverable after a suspension ends?
A: Costs from obligations properly incurred before the effective date — unexpired leases, non-cancelable orders, storage, idle equipment — plus costs you could not immediately shut off, and reasonable settlement expenses like the accounting and legal work of preparing the claim itself. Costs incurred in anticipation of the order, or continued through negligence, are not recoverable. Restart costs are claimable but must be documented separately.

Do I have to tell my subrecipients?

Q: Do I have to tell my subrecipients?
A: Yes, immediately and in writing. As the pass-through entity you own the flow-down: tell each subrecipient exactly what stops, when, and what documentation you need from them. Subrecipient costs incurred after your notice should stop accruing to the award; costs they incur because you notified them late are your problem at settlement.

Can a stop work order be challenged?

Q: Can a stop work order be challenged?
A: Sometimes. Courts in 2025-26 have blocked freezes and terminations that exceeded agency authority or rested on after-the-fact priorities, including the August appellate ruling protecting $20 billion in EPA climate grants. But litigation runs on months, not days. Comply first, preserve your objection in writing, document costs as if you will file a claim, and get counsel involved early if the dollars justify it.

Bottom Line: Triage First, Then Get Paid

A grant stop work order tests systems, not intentions. The recipients who recover their stranded costs are the ones who treat the effective date as a bright line, sort every continuing cost against the two-part test in § 200.343 within the first week, flow the order down to subs the same day, and open a written channel with the agency asking for authorization of what cannot stop. Everything else — the claim, the restart, even a legal challenge — is built on that foundation.

The deeper lesson of the past two years is concentration risk. A single-award budget now carries a built-in 90-day pause hazard, and the organizations that absorbed suspensions without layoffs were the ones with a diversified pipeline already moving. If a pause on your biggest award would break your budget, the time to widen the funnel is now — OpenGrants’ grant writing services can help you build and execute a diversification plan so the next stop work order is a cash-flow event, not an existential one.