(a) In an application under section 66(a) of the Act, an applicant may not add, substitute or delete a basis, unless the applicant meets the requirements for transformation under section 70(c) of the Act and § 7.31 of this chapter. (b) In an application under section 1 or section 44 of the Act: (1) Before publication for opposition, an applicant may add or substitute a basis, if the applicant meets all requirements for the new basis, as stated in § 2.34 , § 2.44 , or § 2.45 . The applicant may delete