The Humble project was approved, but the planning commission (which had previously rejected the project by a 5–4 vote) had imposed 36 conditions many that had never been imposed on an industry before. Church added three more which included for parking, sulfur recovery and carbon monoxide emissions. As a part of the imposed conditions on the approval for Humble Oil, Church asked that three air-pollution stations be set up in Monterey County to monitor air quality for two-years prior to Humble starting to build.
The Humble project was approved despite a previous rejection by a 5-4 vote from the planning commission. The commission imposed 36 stringent conditions on the approval, many unprecedented for an industry.  Church added three more requirements, including parking, sulfur recovery, and carbon monoxide emissions monitoring. As part of these conditions, Church requested the installation of three air quality monitoring stations in Monterey County to be operational two years before construction began.