An applicant for certification in a specialty in geology shall meet all of the requirements of Section 7841 and, in addition, his or her seven years of professional geological work shall include one of the following:
(a)
A minimum of three years performed under the supervision of a geologist certified in the specialty for which the applicant is seeking certification or under the supervision of a licensed civil engineer if the applicant is seeking certification as an engineering geologist, except that prior to July 1, 1970, professional geological work shall qualify under this subdivision if it is performed under the supervision of a geologist qualified in the specialty for which the applicant is seeking
certification or under the supervision of a licensed civil engineer if the applicant is seeking certification as an engineering geologist.
(b)
A minimum of five years’ experience in responsible charge of professional geological work in the specialty for which the applicant is seeking certification.