Cal. Code Regs. tit. 23 § 3834
An amendment to an application prior to a certification action being taken shall be submitted in the same manner as the original application and shall be considered a part of the application it amends. No additional fee shall be required for an amendment to an application prior to a certification action unless the activity's size, design, scope, or potential for adverse impact has changed significantly, prompting the need for further technical or administrative review or otherwise triggering a larger fee as required pursuant to Section 3833 of this Chapter.
Cal. Code Regs. Tit. 23, § 3834
Note: Authority cited: Section 1058, Water Code. Reference: 26 USC Section 169, 40 CFR Section 20; 15 USC Section 636, 40 CFR Section 21; 33 USC Section 1341; Sections 13160 and 13160.1, Water Code; and Sections 44533 and 44539, Health and Safety Code.