Alabama Construction Change Order Practices

Change orders are formal contract modifications that adjust the scope, schedule, or price of a construction project after the original agreement is executed. In Alabama, both public and private construction projects rely on structured change order processes to manage deviations from the original contract without triggering legal disputes or project delays. Understanding how change orders are classified, authorized, and documented is essential to anyone operating within Alabama's construction industry, from general contractors and subcontractors to project owners and public agencies.

Definition and scope

A change order is a written amendment to an existing construction contract that modifies one or more of the following: the work to be performed, the contract price, or the contract completion date. Unlike informal field directives, a properly executed change order carries the same legal weight as the original contract and must be signed by authorized representatives of both the owner and the contractor.

In Alabama, change orders apply across commercial, industrial, residential, and public works construction. For projects governed by the Alabama Competitive Bid Law (Code of Alabama § 41-16-50 et seq.), public agencies face specific restrictions on the scope and dollar thresholds for change orders — changes that materially alter the original bid scope may require re-advertisement rather than a simple modification. Private contracts are governed primarily by the terms negotiated between parties, with baseline protections established under Alabama contract law.

This page addresses change order practices within Alabama's construction sector. It does not cover federal procurement change order rules (such as those under the Federal Acquisition Regulation applicable to federal contracts), construction projects located outside Alabama's borders, or disputes subject to multi-state arbitration clauses outside Alabama jurisdiction. For a broader orientation to how construction contracts are structured, see Alabama Construction Contract Concepts.

Scope limitations: The analysis here draws on publicly available Alabama statutory and regulatory sources. It does not constitute legal or professional advice. Projects subject to federal oversight — including ALDOT-administered federal-aid highway projects — operate under overlapping federal requirements not fully addressed here.

How it works

A change order moves through a defined sequence before it becomes enforceable. The following numbered breakdown reflects standard industry practice, aligned with guidance from the American Institute of Architects (AIA) contract documents and the Associated General Contractors of America (AGC):

  1. Identification of changed condition — A party identifies that field conditions, design revisions, owner directives, or unforeseen circumstances require work outside the original contract scope.
  2. Request for information (RFI) or change proposal request (CPR) — The contractor submits a formal inquiry or proposal documenting the change, its cause, and its estimated cost and schedule impact.
  3. Pricing and review — The owner or owner's representative reviews the proposed cost, which may include direct labor, materials, equipment, subcontractor markups, overhead, and profit. Alabama public contracts typically cap contractor markup percentages on change order work in the contract specifications.
  4. Negotiation and approval — Both parties agree on the adjusted price and schedule. On public projects, the authorizing official's signature authority may be capped — changes exceeding a defined dollar amount may require board or governing body approval.
  5. Execution of the change order document — The signed change order is incorporated into the contract file. Work proceeds only after execution unless a separate "work order pending" mechanism is contractually authorized.
  6. Payment processing — The approved change order amount is added to or subtracted from the contract sum and reflected on subsequent pay applications.

A key distinction exists between a unilateral change order and a bilateral change order. A bilateral change order reflects mutual agreement on scope, cost, and time — the standard form. A unilateral change order (sometimes called a construction change directive) is issued by the owner when agreement cannot be reached; the contractor is obligated to perform the work, with the cost to be determined later through negotiation or dispute resolution. This distinction directly affects a contractor's rights under Alabama law, particularly in relation to Alabama Construction Dispute Resolution.

For public works projects specifically, the Alabama Building Commission and the Alabama Department of Transportation (ALDOT) each maintain project-specific administrative requirements governing how change orders are authorized and documented. The regulatory context for Alabama construction page outlines the broader agency framework within which these rules operate.

Common scenarios

Change orders arise from four primary categories of triggering events in Alabama construction:

Design changes — The owner or design professional modifies drawings or specifications after construction begins. This is the most common change order type on commercial projects and typically generates both cost and schedule adjustments.

Differing site conditions — Subsurface conditions (rock, groundwater, contaminated soil) that differ materially from what the contract documents indicated. Alabama courts recognize differing site conditions claims under standard contract law, and most standard contracts (AIA A201, ConsensusDocs) include explicit differing site conditions clauses.

Regulatory and code changes — A building department, the Alabama State Fire Marshal's Office, or another authority having jurisdiction (AHJ) requires design modifications during permit review or inspection. Such changes are typically compensable unless the contract explicitly assigns code compliance risk to the contractor. For permitting-related implications, the framework is addressed in how Alabama construction works as a conceptual overview.

Owner-directed scope additions or deletions — Owners add finishes, upgrade systems, or remove scope items. Deletions require care: Alabama contract law recognizes that removing work to self-perform it or award it to another contractor may constitute a breach rather than a valid change order.

Decision boundaries

Determining whether a situation warrants a change order — as opposed to a claim, a dispute, or work covered under the original scope — involves defined decision criteria:

Notice requirements are critical. Failure to provide written notice of a claim for additional compensation within the time period specified in the contract — often 7 to 21 days from the triggering event — can extinguish the contractor's right to recover, even when the underlying change is valid. This intersects directly with Alabama construction payment concepts and Alabama retainage rules, since unresolved change orders frequently affect payment application accuracy and retainage calculations.

On public projects subject to competitive bidding, the Alabama Attorney General's Office has historically scrutinized change orders that, in aggregate, substantially expand the original contract value. Repeated or large-scale change orders on public work may draw review under the Alabama Competitive Bid Law to determine whether the cumulative changes constitute a new project requiring re-advertisement. The Alabama construction industry reference page provides orientation to the broader regulatory and operational environment in which these thresholds apply.

References

Explore This Site

Services & Options Types of Alabama Construction Regulations & Safety Regulatory Context for Alabama Construction Tools & Calculators Board Footage Calculator FAQ Alabama Construction: Frequently Asked Questions