(a) The board may issue a certificate, without examination, to any individual who is registered or certified as an architect in another state or country where the qualifications required are equivalent to those required in this State. The possession of a certificate from the National Council of Architectural Registration Boards shall be prima facie evidence that the individual meets the qualifications required in this State.

(b) The board may issue a certificate to individuals who have lawfully practiced architecture in another state or country for a period of more than ten years if such individual achieves a satisfactory score on a practical examination of a nature determined by the board.

(c) A resident of another state who is licensed to engage in the practice of architecture in the state where his office is located may offer to perform architectural services in the Commonwealth of Pennsylvania without first obtaining a certificate. Architectural services, however, may not actually be performed by a nonresident architect until a certificate is obtained.

(d) An individual who is licensed to engage in the practice of architecture in a foreign country where his office is located and in addition holds a National Council of Architectural Registration Boards certificate may be admitted to this Commonwealth for the purpose of offering to perform architectural services and for that purpose only without first obtaining a certificate. Architectural services, however, may not actually be performed by a foreign architect until a certificate is obtained.