The adjusted costs of administration of the natural gas regulatory program will be assessed against each natural gas pipeline company based on the proportion of the total gas subject to Commission regulation which was sold and transported by each company in the immediately preceding calendar year to the sum of the gas subject to the Commission regulation which was sold and transported in the immediately preceding calendar year by all natural gas pipeline companies being assessed annual charges.

[Order 472-B, 52 FR 36022, Sept. 25, 1987]