Schedule 1

FIRST SCHEDULERegulation 2(1)Accuracy Limits for MetersMaximum Volumetric FlowratesCategoryAccuracy Limits(in scm/hr) (Volume)>150,000Category 1, BPRM+ 0.7%>30,000 <150,000Category 2, BPRM+ 1.0%>6,000 <30,000Category 3, BPCM+ 1.5%<6,000Category 4, DRCM+ 2.0%