Emergency Operation of One- and Two-Engine Water-Well Drilling Rigs During the Drought State of Emergency

This page last reviewed September 4, 2014.


A dry riverbed in California. Courtesy of the National Oceanic and Atmospheric Administration

California is currently facing a serious drought, and in response, Governor Jerry Brown declared a Drought State of Emergency in California on January 17, 2014 and a Continued State of Emergency on April 25, 2014. Two-engine water-well drilling rigs are typically subject to the In-Use Off-Road Diesel Vehicle Regulation (Off-Road Regulation). However, during an emergency, such as the current Drought State of Emergency, any vehicle operating exclusively for emergency purposes is exempt from all emission performance requirements of ARB's in-use diesel regulations.  

The documents below provide additional information and answers to frequently asked questions for both in-state and out-of-state water-well drilling rig vehicle owners who are operating or plan to operate in California during (and after) the State of Emergency.

Two-Engine Water-Well Drilling Rigs

Two-engine water-well drilling rigs may operate in California during the Governor’s declared state of emergency (regardless of engine tier level and State of origin), provided owners or operators comply with the recordkeeping, reporting, and notification requirements detailed in the links below: A water-well drilling rig

One-Engine Water-Well Drilling Rigs

One-engine water-well drilling rigs may operate in California during the Governor’s declared state of emergency (regardless of engine year and State of origin), provided owners or operators comply with the recordkeeping, reporting, and notification requirements detailed in the links below.  Note that initial reporting and designation for the low-use exemption must be completed prior to beginning operation in California under these emergency provisions or within 30 days of purchasing a vehicle:







If you have additional questions, please contact us at 1-866-6-DIESEL (1-866-634-3735).
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