DSA Process Guide for Education MEP Projects

Public K-12 schools and community colleges in California occupy a unique regulatory position. Unlike most commercial buildings — which are reviewed and permitted by local building departments — educational facilities are subject to state-level plan review by the Division of the State Architect (DSA), a division of the California Department of General Services. Every new building, addition, or alteration on a public school or community college campus must receive DSA approval before a local building permit can be issued.

For MEP engineers, DSA review is more comprehensive and more technically demanding than standard local plan check. DSA reviewers examine compliance with the California Building Code, Title 24 Part 6 energy standards, CALGreen mandatory measures, and DSA’s own guidelines and information bulletins that address educational occupancy-specific requirements. Seismic bracing for mechanical and electrical systems receives particular scrutiny, given California’s seismic risk profile and the life-safety implications of school building failures.

Budlong has provided MEP engineering on education projects across California since the firm’s founding. Our team has navigated DSA plan check on K-12 schools, community colleges, and state-funded institutional buildings, building an institutional understanding of DSA submittal requirements, correction response protocols, and the field inspection documentation procedures that govern construction through project closeout.

1. What Is DSA and Which Projects It Governs

The Division of the State Architect was established to provide design and construction oversight for facilities used by California’s public schools, community colleges, and state agencies. Its regulatory authority derives from the California Education Code and the California Building Code, which together designate DSA as the approving authority for covered project types.

Projects requiring DSA approval include: new construction of any building on a public K-12 school campus; alterations or additions to existing K-12 school buildings; new construction and alterations on California Community College District campuses; state-owned or state-leased facilities; and certain other public buildings designated by statute. Charter schools that occupy former public school facilities may also fall under DSA jurisdiction depending on occupancy classification and ownership structure.

DSA does not govern private K-12 schools, private colleges or universities, or most commercial buildings — those projects are reviewed by local building departments. And while DSA reviews public community college facilities, the University of California and California State University systems have their own review processes separate from DSA, though they reference similar California Building Code requirements.

2. DSA MEP Review Scope

DSA’s plan review scope for MEP systems is comprehensive. Reviewers examine mechanical, electrical, and plumbing systems for compliance with multiple overlapping code requirements simultaneously.

Mechanical Systems

DSA reviews HVAC system design for California Mechanical Code compliance, California Energy Code (Title 24 Part 6) compliance covering equipment efficiency, controls, economizers, and duct construction, and CALGreen mandatory ventilation and filtration requirements. DSA also examines outdoor air delivery rates under ASHRAE 62.1, which is the referenced ventilation standard for educational occupancies in California. HVAC seismic bracing details — including equipment anchorage, duct and pipe bracing, and flexible connections at seismic joints — receive detailed technical review. HVAC design documents submitted to DSA must include equipment schedules with efficiency ratings, sequence of operations narratives, control diagrams, and detailed seismic bracing details for all suspended equipment.

Electrical Systems

DSA reviews electrical systems for compliance with the California Electrical Code (which adopts the National Electrical Code with California amendments), Title 24 Part 6 lighting power density limits and controls, fire alarm system design per NFPA 72 and the California Fire Code, and EV charging infrastructure per CALGreen mandatory measures. For K-12 schools, DSA also reviews emergency power systems — generators, transfer switches, and critical branch circuits serving life-safety functions. Electrical design documents must include single-line diagrams, panel schedules, lighting control drawings, fire alarm riser diagrams, and seismic bracing details for switchgear and transformers.

Plumbing Systems

DSA reviews plumbing systems for California Plumbing Code compliance, fixture counts consistent with occupancy loads per CBC Table 422.1, CALGreen water efficiency provisions, and cross-connection control requirements. Plumbing design documents must include water supply riser diagrams, sanitary system plans, fixture schedules with flow rates, and details for reduced pressure zone backflow preventers on all direct connections to potable water systems.

3. The DSA Submittal and Plan Check Process

The DSA plan check process follows a defined sequence. Understanding each stage allows project teams to plan realistic schedules and avoid the most common causes of delay.

Stage 1: Project Registration

The project must be registered with DSA before submitting documents for review. Registration requires the project owner (school district or community college district) to complete an application and pay applicable fees. The project is assigned a DSA application number, which must appear on all submitted documents.

Stage 2: Construction Document Submittal

Complete construction documents — architectural, structural, MEP, civil, and landscape — are submitted simultaneously as a single package. DSA does not review partial submittals for most project types; an incomplete package will be rejected. All discipline drawings must be coordinated and consistent. Title 24 energy compliance documentation (CF1R certificates) must be included in the submittal package.

Stage 3: Plan Check Review

DSA distributes the documents among its specialist reviewers — structural, architectural, accessibility (ADA/CBSC), fire and life safety, and MEP. Each reviewer examines their area independently. Plan check timelines for new construction projects range from 3 to 6 months for initial review, depending on project complexity and current office workload. DSA posts current plan check turnaround times on its website.

Stage 4: Correction Cycles

DSA issues a list of plan check corrections that the design team must address. Correction responses require revised drawings, written clarifications, or additional calculations — not verbal explanations. Each correction cycle adds 4 to 10 weeks to the review timeline. Projects with well-coordinated, complete submittals typically experience fewer correction cycles.

Stage 5: DSA Approval

When all corrections are resolved, DSA issues project approval. The approved DSA stamp on the construction documents authorizes the local authority having jurisdiction to issue a building permit. Construction cannot begin until the building permit is issued.

4. Navigating DSA Plan Check Corrections

Plan check corrections are not failures — they are a routine part of the DSA review process. Every project of meaningful complexity receives corrections, often across multiple cycles. What distinguishes experienced DSA project teams is the quality and completeness of their correction responses.

Each correction must be responded to in writing. Responses must reference the specific correction number and provide either a revised drawing, a revised specification section, an additional calculation, or a written clarification citing the applicable code section that supports the design approach. DSA reviewers reject vague responses or responses that simply restate the existing design without addressing the correction.

MEP corrections commonly arise from: insufficient seismic bracing detail on suspended equipment, inconsistency between equipment schedules and Title 24 energy compliance documents, missing or incomplete outdoor air delivery calculations, fire alarm system coverage gaps or notification appliance spacing issues, or fixture counts that do not match occupancy loads calculated from the architectural occupancy schedule. A systematic pre-submittal internal review against DSA’s common correction lists — which DSA publishes by project type — reduces the volume of first-cycle corrections.

5. Seismic Requirements for MEP Systems Under DSA

California’s seismic risk makes structural compliance an overriding concern for DSA, and the seismic requirements extend fully to MEP systems. ASCE 7, as adopted by the California Building Code, requires that all nonstructural components — including mechanical equipment, electrical switchgear, plumbing, ductwork, conduit, and piping — be designed and installed to resist seismic forces appropriate to the site’s seismic design category and the component’s importance factor.

For educational buildings designated as Occupancy Category III (essential facilities serving significant numbers of people), MEP components must meet more demanding seismic qualification and bracing requirements than standard commercial buildings. DSA reviewers specifically examine:

• Anchorage details for rooftop HVAC units and mechanical equipment rooms
• Seismic bracing schedules and details for suspended ductwork, conduit, and piping above a defined threshold size
• Flexible connections at seismic joints and between equipment with different seismic restraint requirements
• Seismic qualification documentation for equipment (OSHPD OPA listings or manufacturer seismic qualification reports)
• Electrical switchgear and transformer anchorage details

MEP engineers on DSA projects must include complete seismic bracing details, bracing schedules, and equipment anchorage calculations in the construction document submittal. Delegated design by specialty subcontractors — common for HVAC duct bracing — must be identified in the construction documents and coordinated through the deferred submittal process, which requires DSA approval of the delegated design documents before that work can proceed.

6. Title 24 Energy Compliance Within DSA Review

Title 24 Part 6 energy compliance documents must be included in the DSA plan check submittal and are reviewed by DSA as part of the overall package. DSA does not conduct a separate energy compliance review — it verifies that the energy compliance documents are present, complete, consistent with the mechanical and electrical drawings, and stamped by the responsible licensed mechanical or electrical engineer.

The most common Title 24 coordination issue in DSA submittals is inconsistency between the energy compliance model and the construction documents. Equipment specified in the compliance model — with specific efficiency ratings, capacities, and control sequences — must match the equipment shown on the mechanical drawings and specified in the equipment schedule. When the contractor substitutes equipment during construction, the compliance model must be updated and the revised CF2R installation certificate filed with the DSA-approved project inspector.

CALGreen mandatory measures must also be documented in the DSA submittal. The CALGreen checklist — signed by the responsible design professional — must be included in the package. DSA cross-references the checklist against the MEP drawings, particularly the plumbing fixture schedules (for water use reduction documentation) and the mechanical drawings (for ventilation and filtration specifications).

7. DSA Field Inspection and the Project Inspector

DSA’s oversight does not end at plan check approval. During construction, DSA requires that a qualified, DSA-approved project inspector be retained to observe and document construction work. The project inspector is not DSA staff — the inspector is retained by the project owner (the school district or community college) and reports to DSA.

The project inspector must be present during all critical construction activities, including MEP rough-in, equipment installation, duct and pipe installation, seismic bracing installation, and HVAC system testing and balancing. The inspector completes daily inspection reports documenting what work was observed, what was inspected and found to comply, and any non-compliant work that was identified and corrected.

The MEP design team has a direct relationship with the project inspector throughout construction. When the inspector identifies a non-conforming condition — an improperly braced conduit run, an equipment substitution that differs from the approved drawings — the MEP engineer must issue a written field directive or request for information response that documents the resolution. All field-directed changes that materially affect the approved design must be submitted to DSA as a deferred submittal or minor deviation for approval before the affected work can proceed.

8. DSA Project Closeout and Final Approval

DSA project closeout is a formal process that must be completed before the local AHJ will issue a certificate of occupancy. The closeout package submitted to DSA includes the project inspector’s verified report (confirming that all work was completed in accordance with the approved drawings), final field inspection reports, documentation of all approved deferred submittals and minor deviations, and the engineer-of-record’s certification that the completed construction conforms to the approved construction documents.

For MEP systems, the closeout documentation includes: Title 24 CF2R installation certificates signed by the installing contractor confirming each mandatory measure was installed as specified; CF3R inspection certificates completed by the HERS rater for applicable residential or commercial systems; TAB (test, adjust, and balance) reports for HVAC systems; fire alarm system acceptance test documentation; and commissioning documentation if commissioning was a project requirement.

Budlong’s project engineers stay engaged through DSA closeout, issuing the required engineer-of-record certifications, reviewing TAB reports for consistency with design intent, and coordinating the commissioning documentation submission where Budlong’s in-house commissioning team performed the building commissioning.

9. Best Practices for MEP Compliance on DSA Projects

Teams that move efficiently through DSA plan check share several common practices that distinguish their process from teams that experience multiple extended correction cycles.

Conduct a Pre-Submittal DSA Checklist Review

DSA publishes correction checklists and information bulletins organized by project type and system type. Before finalizing the submittal package, Budlong’s project engineers systematically review the applicable checklists against the construction documents, addressing each item that is relevant to the project scope. This pre-submittal review typically reduces first-cycle corrections by 30 to 50 percent based on our project experience.

Coordinate All Disciplines Before Submission

DSA reviews all disciplines simultaneously and generates corrections when inconsistencies appear across drawings. The architectural occupancy schedule must match the plumbing fixture count. The mechanical equipment schedule must match the Title 24 compliance documentation. The electrical panel schedules must match the lighting control drawings. A thorough cross-discipline coordination review — ideally facilitated by BIM clash detection — prevents the most common inter-discipline coordination corrections.

Address Seismic in Detail at the Construction Document Stage

DSA seismic corrections are among the most time-consuming to resolve because they often require additional calculations, revised details, or coordination with the structural engineer. Including complete, properly detailed seismic bracing schedules, equipment anchorage details, and flexible connection details in the initial submittal — rather than leaving them for deferred submittals — keeps the critical path on schedule.

10. Education Projects Served by Budlong

11. Related Reading

12. Frequently Asked Questions