Yes. Some States will not allow combined phases of an asbestos project (Phase I, Phase II, and Phase III). It’s always recommended to request information from your state agencies before starting any asbestos project. An ethical problem arises when having one sole provider for all 3 services because of the conflict of interest; after all, it is in the best interest of an abatement/remediation company performing a job to have passing air tests. We recommend have at least one outside party, primarily for the final clearance testing if any asbestos/mold has been, or will be, removed or remediated.