text_combined: caiso notice june 19 ferc order emissions start cost calculations iso market participants federal energy regulatory commission ferc june 19 order california independent system operator corporation iso directed pay generators air district mitigation fees associated nox emissions incurred generators required run accordance iso dispatch instructions iso specifically ordered develop emission allowance charge assessed state load served iso controlled grid order recover nox emission mitigation costs would used pay eligible generators mitigation costs compliance iso filed july 10 2001 proposed tariff revisions develop 1 rate emission allowance charge 2 escrow account monies collected 3 process generators would submit iso invoices emission mitigation fees 4 payment process iso would pay mitigation costs market notice posted august 1 2001 iso published initial emission allowance charge rate iso developed details methodology calculations used develop rate posted information http www caiso com docs 2001 07 12 html june 19 ferc order also directed iso exclude start fuel costs calculation mitigated market clearing price instead pay generators start fuel costs way iso handle emission mitigation costs fees market notice posted august 1 2001 iso published initial start fuel charge rate iso modified previously posted start fuel charge rate provided details methodology calculation used develop rate information also posted cr communications