CESSWI

EnviroCert states that its professional certification exams are available at Prometric testing centers, and that these in-person exams include live proctoring to maintain the credibility and standards professionals are held to. Exams are included in the on-demand review bundles available through Prometric. Scheduling is handled through EnviroCert's Candidate Management System rather than a walk-in appointment.

EnviroCert's public pages reviewed for this guide do not publish an item count or a time limit for the CESSWI exam. Treat any specific number you see elsewhere as unverified and confirm it with EnviroCert directly, or through the exam information in the Candidate Management System, before you plan your pacing.

A passing score is not published on the EnviroCert pages reviewed here, so no figure is given on this page. Because scaled scores and cut scores change when an exam is revised, confirm the current requirement with EnviroCert rather than relying on a number remembered from an older study guide or forum post.

EnviroCert lists five areas: documentation, communication, safety, the rules and methods of erosion and sediment control, and stormwater control and management. The listed sub-topics include note taking and reporting, photos and site drawings, meetings and difficult situations, insects, animals, plants and hazardous materials, and BMPs for erosion, sediment, runoff, materials and post-construction management.

EnviroCert's public pages name the five knowledge areas but do not publish percentage weights for them. Study all five rather than guessing at a weighting. The published CESSWI Job Task Analysis is the better guide to relative emphasis, because it lists the actual tasks the exam is built from.

Start with the Job Task Analysis so you know the tasks being tested, then work the rules and methods of erosion and sediment control, since most inspection judgments depend on knowing what a practice is supposed to do. Layer in documentation and communication next, and finish with safety and stormwater program compliance, which are easy to skip.

The most common failure pattern is over-studying BMP hardware and under-studying the inspection workflow: what to record, how to photograph a deficiency, how to write it up, and how to raise it with site personnel without escalation. Safety and communication are named exam areas, not filler, and questions in those areas reward practical judgment over memorized definitions.

No. EnviroCert lists them as separate certifications: CESSWI is the Certified Erosion, Sediment and StormWater Inspector, while CPSWI, the Certified Professional in StormWater Inspection, is listed as coming soon, with CPSWI and CPWPC noted for launch in 2026. If you are choosing between them, check which one your jurisdiction or client specifications actually require.

EnviroCert describes the CESSWI program as intended to ensure certificants meet federal requirements including the EPA NPDES definition of "Qualified Personnel," and to know how to ensure the projects they oversee meet state and local requirements. Whether that satisfies a specific permit is decided by the permitting authority, so verify against your project's own permit language.

EnviroCert's public pages reviewed here do not state a retake policy, waiting period or fee for the CESSWI exam, so none is quoted on this page. Contact EnviroCert directly for the current policy before you schedule, and note that a retake will usually require a new Prometric testing request through the Candidate Management System.