Arizona Contractor Documentation Requirements

Maricopa County Pad Certification Requirements

Maricopa County requires pad certifications for both commercial construction and residential subdivision projects. The county's rapid growth has created a standardized pad cert process used by most cities in the Valley, though individual cities (Phoenix, Scottsdale, Mesa, Chandler, Gilbert) may have additional requirements.

Maricopa County pad certification documentation requirements:

• • Prepared by or under direct supervision of a licensed civil engineer or land surveyor
• • Benchmark documentation: monument ID, elevation, datum (NAVD88), and verification date
• • Approved grading plan reference: plan number, approval date, revision number
• • Minimum 4–5 pad elevation shots per lot with design vs. as-graded comparison
• • Tolerance: ±0.10 ft for most applications
• • Positive drainage verification: minimum 2% slope for first 10 feet from structure
• • Drainage swale documentation for lots adjacent to natural drainage channels or retention basins
• • Engineer or surveyor stamp and signature

Scottsdale has additional requirements for drainage documentation in the McDowell Sonoran Preserve area and for projects with significant grade changes. The City of Phoenix requires pad certs before issuing a certificate of occupancy for commercial projects.

See the pad elevation documentation guide for the full field procedure.

ADOT Documentation Standards for Road Contractors

Arizona DOT (ADOT) contracts require documentation per the ADOT Construction Manual and project specifications. ADOT has specific forms and processes that differ from federal highway documentation:

• • ADOT Form 11 (Inspector's Daily Report): Required from field inspectors on all ADOT contracts; must document weather, work performed, quantities, equipment, personnel, and any disputes or issues
• • ADOT Form 5 (Compaction Test Report): Used for in-place density testing documentation on ADOT projects; requires AASHTO T 99 or T 180 lab results and field nuclear density results
• • Material Source Approval (MSA): ADOT requires documentation of material source approval before placing any engineered fill, base course, or aggregates
• • Contractor's Daily Report: ADOT requires contractors to submit daily reports documenting crew size, equipment, work area, quantities completed, and any access or coordination issues
• • Traffic control documentation: ADOT requires traffic control setup documentation including times, locations, and responsible personnel; active work zone setup must be documented before beginning work

Arizona's extreme summer heat (regularly exceeding 110°F in Phoenix) creates additional documentation obligations for ADOT projects: hot weather concrete placement plans, temperature monitoring logs for concrete pours, and worker heat illness prevention documentation.

Arizona OSHA Documentation: ADOSH Requirements

Arizona operates its own OSHA State Plan through the Arizona Division of Occupational Safety and Health (ADOSH), under the Industrial Commission of Arizona. ADOSH covers both public and private employers, including construction contractors.

ADOSH documentation requirements for Arizona construction contractors:

• • OSHA 300 log: Required for employers with 10+ employees; same format as federal OSHA. Arizona low-hazard establishment exemption list differs slightly from federal.
• • Injury and illness reports: Must report fatalities to ADOSH within 8 hours; hospitalizations, amputations, and eye loss within 24 hours (same as federal)
• • Toolbox talk records: ADOSH auditors frequently request safety meeting records; document date, topic, attendee sign-in, and presenter
• • Equipment inspection records: Cranes, aerial lifts, and excavation shoring must have documented daily pre-use inspections
• • Heat illness prevention: ADOSH has Arizona-specific heat illness prevention standards; documentation includes heat illness prevention plan, worker training records, and water/shade/rest provision records — especially important given Arizona summers
• • Underground utility locates: Arizona requires documentation of Blue Stake (Arizona 811) calls and locate markings before any excavation

See the full OSHA documentation guide for complete record-keeping requirements. Consult ADOSH directly for Arizona-specific standards.

Arizona-Specific Environmental Documentation

Arizona's desert environment creates documentation requirements that are unique to the state:

• • Dust Control Permit (ADEQ/county): Projects disturbing more than 0.1 acre in Maricopa or Pinal County require an Arizona Department of Environmental Quality dust control permit. Dust suppression activities must be documented in daily logs.
• • Native Plant Preservation Plan: Scottsdale requires NPPP documentation for any significant vegetation disturbance. Tags on saguaros and other protected plants must be documented before grading, and translocation must be permitted by the Arizona Department of Agriculture.
• • Archaeological monitoring: Undeveloped desert sites often require archaeological monitoring during initial grading; monitors must document findings and project suspension if significant cultural resources are encountered.
• • Section 404 permits: Projects impacting washes or water of the U.S. require Army Corps of Engineers Section 404 documentation; work limits and mitigation measures must be documented in the field.

Arizona Registrar of Contractors (ROC) Record-Keeping

The Arizona Registrar of Contractors (ROC) licenses and regulates Arizona contractors. ROC requirements include:

• • 5-year record retention: All contracts, change orders, permits, inspection approvals, and project completion documentation must be retained for 5 years from project completion
• • Written contracts: ROC regulations require written contracts for jobs over $1,000; contracts must include scope, price, payment schedule, and completion date
• • Change order documentation: Written change orders with owner signatures are required for scope changes on residential projects; verbal authorizations are not enforceable
• • Workmanship warranty: ROC requires contractors to warrant workmanship for 1 year (structural elements: 2 years); maintaining documentation of inspections and customer communications protects against workmanship complaints

Frequently Asked Questions