Stored materials best practices vary significantly by state. What works in Texas may not satisfy California requirements. What passes audit in New York may fall short in Florida. General contractors working across state lines must understand how each jurisdiction treats stored materials for prompt payment, lien rights, and documentation.

This guide maps the key stored materials requirements for major construction states.

Why State Requirements Matter

Stored materials sit at the intersection of three state-level legal frameworks: prompt payment statutes, mechanics' lien laws, and insurance regulations. Each state sets its own rules for how stored materials are documented, when they must be paid, and how they affect lien rights.

A 2024 AGC compliance survey found that 34% of GCs operating in multiple states had received at least one compliance notice related to stored materials documentation in the previous three years. Most issues stemmed from applying one state's rules uniformly across all projects.

State-by-State Stored Materials Requirements

State	Prompt Payment Deadline	Off-Site Storage Allowed	Insurance Requirement	Lien Right Impact	Retainage Cap
California	30 days	Yes, with approval	Builder's risk + inland marine	Included in lien calculations	5% (public)
Texas	35 days	Yes, with documentation	Sub must insure off-site	Counts toward lien amount	10% until 50%
Florida	25 business days	Yes, with title transfer	Required for off-site claims	Must be separately identified	10% then 5%
New York	30 days	Yes, on public projects	GC verification required	Included in progress payments	5% (public)
Illinois	30 days	Yes	Standard insurance required	Part of sworn statement	No cap (private)
Ohio	30 days	Yes, with documentation	Sub's coverage required	Counted in lien claim	10%
Pennsylvania	45 days	Yes, with bond or escrow	Bond required for off-site	Included in payment claims	10%
Georgia	15 days	Limited	Project policy covers on-site	Must be on project site for lien	No statutory cap
Washington	30 days	Yes	Sub must carry coverage	Included if properly documented	5% (public)
Colorado	30 days	Yes, with approval	Certificate required	Part of trust fund claim	No statutory cap

California Stored Materials Rules

California Civil Code Section 8800 series governs stored materials on construction projects. Key requirements include separate identification of stored materials on progress payment requests. Off-site storage requires GC pre-approval and evidence of insurance.

California's prompt payment act requires payment within 30 days of an approved progress payment request. Stored materials claims with complete documentation must be included in the approved amount. Withholding payment on properly documented stored materials can trigger penalty interest.

Retainage on public projects is capped at 5% of the total amount earned, including stored materials. The retention cap was one of several changes in the 2025 public contract code amendments.

Texas Stored Materials Rules

Texas Property Code Chapter 28 governs progress payments and stored materials. Stored materials count toward the contract balance for purposes of mechanics' lien calculations.

Texas requires payment within 35 days of receiving a proper pay application. Stored materials claims must include supplier invoices and proof of delivery. Off-site materials require the sub to maintain insurance and provide access for inspection.

The retainage cap is 10% until the project reaches 50% completion, then retainage may be reduced. Stored materials retainage follows the same schedule as work-in-place retainage.

Florida Stored Materials Rules

Florida Statute 218.735 sets specific requirements for stored materials on public projects. The GC must pay for stored materials within 25 business days if the sub provides complete documentation including invoices, insurance certificates, and title transfer documents.

Florida requires title to transfer to the GC before payment for off-site stored materials. This is one of the strictest title transfer requirements in the country. GCs must hold a bill of sale before approving the claim.

The retainage structure changes at 50% completion. Before 50%, the GC can retain 10%. After 50%, retainage drops to 5%. This applies equally to stored materials and work in place.

New York Stored Materials Rules

New York General Municipal Law Section 106-b covers stored materials on public projects. The law requires the GC to verify stored materials through inspection before approving payment.

New York's Labor Law 240 creates unique indemnification requirements that can affect stored materials handling. Materials stored at height or in areas where they could fall may trigger Labor Law liability.

New York prompt payment rules require payment within 30 days of an approved requisition. Stored materials must be identified separately on the payment requisition. The public project retainage cap is 5%.

How to Manage Multi-State Compliance

GCs operating across state lines need a systematic approach to stored materials compliance.

Create a state-specific stored materials policy for each jurisdiction where you work. Map the prompt payment deadlines, retainage caps, insurance requirements, and documentation standards. Train your project teams on the requirements for their specific project locations.

Use a compliance matrix that lists each state's requirements side by side. Update it annually as legislatures amend prompt payment and lien statutes. Assign a compliance coordinator to monitor legislative changes.

Common Multi-State Pitfalls

The most common multi-state mistake is applying your home state's rules to all projects. A GC headquartered in Texas who applies Texas retainage rules to a Florida project will face compliance issues at 50% completion when Florida requires retainage reduction.

Another pitfall is using a single stored materials form across all states. Some states require specific language on progress payment requests. California requires separate identification of stored materials. Pennsylvania requires bonding for off-site materials. Generic forms miss these state-specific requirements.

FAQs

Which states do not allow off-site stored materials billing? No major construction state completely prohibits off-site stored materials billing, but several restrict it heavily. Georgia limits lien rights to materials on the project site. Some states require additional security like bonds or escrow for off-site claims. Check your specific project's state requirements before accepting off-site claims.

Do federal projects follow state stored materials rules? No. Federal projects follow the Federal Acquisition Regulation (FAR), which has its own stored materials requirements. Under FAR, the government must take title to stored materials before payment. State prompt payment and lien laws do not apply to federal projects.

How do I know if a state has updated its stored materials requirements? Monitor your state AGC chapter's legislative updates. Subscribe to construction law firm newsletters in each state where you operate. Review state legislature websites for bills affecting construction payment and lien statutes during each legislative session.

Can a subcontract override state stored materials requirements? Subcontracts can add requirements beyond state minimums but cannot reduce them. If a state requires payment for stored materials within 30 days, a subcontract provision extending that to 60 days is likely unenforceable. State prompt payment statutes typically preempt contrary contract provisions.

Which states have the strictest stored materials requirements? Florida, California, and Pennsylvania have the most detailed requirements. Florida mandates title transfer before payment. California requires separate identification on payment requests. Pennsylvania requires bonding for off-site materials. GCs in these states need dedicated compliance procedures.

How do stored materials affect mechanics' lien rights by state? Most states include properly documented stored materials in the lien calculation. However, some states like Georgia require materials to be on the project site to be included in a lien claim. Check your state's lien statute for specific stored materials provisions.

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