North Region Construction - Project 03A3434 Drainage Improvements
County Route PM/KP
NEV 020, PM 40.7/40.7
Bidder Inquiry / Response
What are the air quality requirements in the 2018 standard specs? Is there a minimum diesel engine tier requirement or is all machinery in compliance with off the rd. air quality ok???
Caltrans does not have specific air quality requirements for diesel engines used for construction. However, all applicable state and federal laws and regulations still apply. Bid per current bidding documents.