Federal approval is the starting point. Your actual use case still matters.

Federal-source work is covered. When Connecticut’s own testing requirements apply, name ALT-152 in the test plan and secure the advance approval used for alternative methods.

Federal applications are covered. Present a state-regulated facility’s intended use to DNREC for site-specific approval before relying on the certification.

Federal applications are covered. On state-regulated sources, VR recertification is available to observers with prior field certification; a first-time observer should request Idaho DEQ approval.

A new observer needs one passing visual examination plus exposure to at least 500 smoke plumes before performing Iowa observations. The additional plume readings are experience-building observations, not additional passing exams.

Federal-source work is covered. For testing governed by Michigan requirements, identify ALT-152 in the plan and follow the normal alternative-method preapproval process.

Federal applications are covered. A state-regulated facility should obtain Nevada DEP’s site-specific approval before using the certification.

For a formal compliance program, document ALT-152 as the observer-certification method in both the pre-test protocol and the final report alongside the other EPA methods used.

A first-time observer completes a full practice sequence before beginning the certification exam. Texas does not require that preliminary sequence to be passed.

Coverage includes sources permitted by Ecology and the Northwest, Olympic Region, Benton, Southwest, and Spokane regional clean-air agencies. Confirmation from the Yakima and Puget Sound agencies remains outstanding.

Federal applications are covered. When the work will satisfy a permit condition or test plan, obtain advance confirmation from the facility’s assigned inspector.