83 Ill. Adm. Code 501.100
Application of Subpart B
Section 501.100 Application of Subpart B
The purpose of this Subpart is to ensure that gas metering
that could affect a customer's bill is accurate. This Subpart applies to all
custody transfer meters and all meters that measure the gas usage associated
with utility-owned equipment including usage by pipeline heaters, compressors,
fuel gas, and storage field injections and withdrawals whose readings directly
or indirectly affect a customer's gas utility bills. This Subpart does not
apply to sub-metering that will not affect a customer's gas utility bills.