(a) This chapter does not prohibit one or more geologists from practicing through the medium of a sole proprietorship, partnership, limited liability company, or corporation. In a partnership, limited liability company, or corporation whose primary activity consists of geological services, at least one partner, member, or officer shall be a registered geologist.

(b) This chapter does not prevent or prohibit an individual, firm, company, association, or corporation whose principal business is other than the public practice of geology from employing a nonregistered geologist to perform nonpublic geological services necessary to the conduct of its business.

(c) This chapter shall not be construed to prevent or to affect:

(1) The practice of any profession or trade for which a license is required under any other law of this state; the practice of registered professional engineers from lawfully practicing soils mechanics, foundation engineering, and other professional engineering as provided in this title; or licensed architects from lawfully practicing architecture as provided in this title; or

(2) The practice of a person who is not a resident of and has no established place of business in this state or who has recently become a resident hereof practicing or offering to practice the profession of geology herein for more than 90 days in any calendar year if the person shall have filed with the board an application for a certificate of registration and shall have paid the fee required by this chapter. Such practice shall continue only for such time as the board requires for the consideration of the applicant for registration.