Regulations relating to measurement of petroleum for fiscal purposes and for calculation of CO2-tax (with 2012 amendments)

Last updated: 24 January 2020

“The purpose of these regulations is to ensure that accurate measurements form the basis of the calculation of taxes, royalties and fees” to Norway. These regulations assist in the gathering and reporting of methane emissions data.

The licensee will be responsible for complying with the regulations and ensuring that employees and contractors do the same. (Sec. 3) Violations may be subject to penalties or imprisonment. (Sec. 34)

Emissions may not bypass the metering system. (Sec. 12)  Meters must measure all emissions, and be designed for redundancy. Meters must be insulated, and accessible for maintenance, inspection and calibration. (Secs. 13-14) They must attach to a computer that carries out required calculations; the computer must be secure and have an uninterruptible power supply. (Sec. 16)

The rule provides allowable measurement uncertainties for components, and requires systematic measurement errors to be “avoided or compensated for”. (Sec. 8) The rule mandates units of measurements for reporting (Sec. 9) and the reporting of reference conditions (Sec. 10) and product characteristics (Sec. 11). Meters must be calibrated before startup; agency officials shall be notified so they can be present. (Sec. 19)

Licensees shall prepare quality assurance manuals for the operation of metering systems. (Sec. 5) Personnel working with the meters must have the correct training and qualifications. (Sec. 6)

Licensee must get permission to install, rebuild, or change the metering system. (Sec. 18) Detailed requirements cover operation and calibration of meters and their components.

Licensees should verify emissions results. “Independent verification of critical parameters may be required.” (Sec. 7) The rules specify recordkeeping and reporting requirements related to the operation and calibration of the metering system, as well as “all significant changes that affect the quality of fiscal measurements or figures reported from them”. (Secs. 28-31)

Comments on the regulations provide more information, and suggest that several emissions factors could use additional refining.

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