TCEQ Central Registry Query. Welcome to the TCEQ Central Registry Query. This application will allow you to search for. Customer Search. Search for a business, governmental body, association, individual, or other entity that owns, operates, is responsible for, or is affiliated with a regulated entity. Regulated Entity Search. Search for a person, organization, place, or thing that is of environmental interest to the TCEQ, where regulatory activities or interest to us occur or have occurred in the past. Program ID Search. Search for a regulated entity by the permit, registration, or other ID number issued by TCEQ program areas. Document Search. Search for Documents IHW Notice Of Registration, PST Registration Certificate and PST Certificate of Delivery. A database is an assortment of data that is organized to be easily accessed, managed and updated, and range from relational databases to cloud databases. Project X Love Potion Disaster Save File. Provides information on chemicals affecting the environment and human health from internationally peerreviewed chemical safetyrelated publications and databases.