After CTE, an ensuing Consent to Operate (CTO) NOC is given to the substance before it can begin working. As the name recommends, the unit will require this NOC to begin activity. All SPCBs direct an exhaustive examination of the office. The Investigation Official will visit and set up an assessment report while guaranteeing that apparatus and contamination control gadgets (whenever required) match the competitor’s statement. This official can be a natural master or specialist with experience in the field who can call attention to any likely hazard and make vital proposals to the entrepreneur or the delegate.