States Eye Model Diesel NOx Rule To Fill Shortcomings In Federal Agreement

State and local air regulators may develop a model rule requiring trucks to reprogram engines to reduce nitrogen oxide (NOx) emissions after enforcement officials at EPA and the Department of Justice (DOJ) said they have no plans to increase the number of trucks that would be retrofitted under an industry-wide legal settlement with the federal government. Khesha Jennings of EPA's Office of Transportation and Air Quality told participants in a July 20 status meeting on the 1999 consent decree that...