SIP Proposal: California (revisions to San Diego County Air Pollution Control portion of plan to expand existing provision that exempts tub grinders and trommel screens that process green material from permit requirements to include horizontal grinders and processing of mixtures of green material and food material). 

SIP Approval: New Hampshire (amendments to motor vehicle inspection and maintenance program regulation).

EPA proposed to approve a CAA §111(d)/129 state plan submitted by South Carolina for implementing and enforcing the emissions guidelines applicable to existing commercial and industrial solid waste incineration units.