The following actions were taken at Tuesday's meeting of the Montgomery County Council. For further information, call the council office at 251-7900.

NEW OFFICERS: Michael L. Gudis was unanimously elected president of the council for a one-year term. Gudis, an accountant and financial consultant, has been vice president for the past year and has been on the council since 1978. William Hanna was elected vice president and Neal Potter president pro tem.

POSITION APPOINTMENTS: A resolution was approved calling for the regular advertisement of vacant positions on appointed county boards and commissions. The council said the county executive had not been advertising such positions on a regular basis.

ETHICS COMMISSIONS: A resolution requiring the public filing of financial disclosure statements by prospective appointees to the county Ethics Commission was approved. Statements must be submitted before the council will consider confirming an appointment.

NEW VILLAGE: The council approved a special election to be held Feb. 5 on the incorporation of the village of Martin's Additions located north of Chevy Chase Village. A village council will also be voted for in the election. The 80-acre area includes 333 single-family homes with about 1,000 residents, 70 percent of whom have signed petitions in favor of the incorporation.

PUBLIC HEARINGS: The council scheduled public hearings for Jan. 22 and 24 on the 1986-1991 capital improvements program for the county government and schools, the Maryland-National Capital Park and Planning Commission, the Washington Suburban Transit and Sanitary commissions, the Revenue Authority and the Housing Opportunities Commission. The hearings will begin at 7:30 p.m.

Also scheduled was a Jan. 8 public hearing on two petitions to establish agricultural preservation districts on two adjoining Poolesville farms on Edwards Ferry Road.

TIME EXTENSION: The council extended its time for action on the proposed uses for Belt Junior High School until March 5.

GAITHERSBURG MASTER PLAN: The council held over action on the plan until next week's regular session.