18 CFR §381.103

1. (a)Submittal of fees. Except as provided in §§ 274.201(e) and 381.106, a fee in the amount set forth in this part shall accompany each filing for which a fee has been established.
2. (b)Deficiencies.
   1. (1)Any filing that is not accompanied by either the fee established for that filing or a petition for waiver in accordance with § 381.106(b) is deficient.
   2. (2)The Secretary will inform any person submitting a deficient filing that:
      1. (i)Such filing will be rejected unless the appropriate fee is submitted within a time specified by the Secretary;
      2. (ii)The Commission will not process any filing that is deficient under this paragraph; and
      3. (iii)The date of filing is the date on which the Commission receives the appropriate fee.
   3. (3)This provision does not preclude a determination that a filing is deficient for any other reason.
3. (c)Choice of two or more fees. If a filing for one service or benefit may be considered as falling within two or more categories or services for which a fee is established, that filing must be accompanied by the higher or highest of the applicable fees.