Professionals should not advertise individually, but they may do so collectively. Publicity campaigns descriptive of the position which the professional holds in the community and which the professional work of the doctor, lawyer, engineer, architect, health expert, certified public accountant holds in the condition of the community, should be carried on for the enlightenment of the people and for the assurance of the general mind of the community. Professionals who are equipped to certify to the healthy condition of individuals or associations of individuals are also equipped to certify to the healthy condition of the city or town in which those individuals or associations of individuals are part of the community