District Police Chief Maurice J. Cullinane announced a major reorganization of the Metropolitan Police Department yesterday, describing the changes as "designed to increase responsiveness to the community while providing for more efficient use of our reduced resources."

As part of the reorganization, Cullinane immediately promoted the commanders of the city's seven police districts from the rank of inspector to deputy chief with pay increases of about $4,000 each. The promotions will be offset by the elimination of seven other deputy chiefs by attrition.

The changes and promotions also incrrease from four to six the number of blacks in command positions, the highest in the history of the city.

The six officers are: Assistant Chiefs Burteil M. Jefferson (field operations) and Tilmon B. O'Bryant (adminstrative services); Vernon of general counsel; and Deputy Chiefs Maurice T. Turner (youth division). Theodore R. Carr (sixth district), Carr and V. Profater were promoted yesterday.

In a statement announcing the changes, Cullianane recalled that the District police force has lost about 1,000 officers or about 20 per cent of its uniformed personnel, since the department hit its peak of 5,100 in 1971. In addition, the department has lost 200 civilian employees and 178 police cadets, 89 per cent of the total cadets the department had at its peak.

Cullinane also noted that crime in the District has been reduced so that this city, which had the highest crime rate of any city of 500,000 or more population in 1969, now ranks 17th.

In order the deal with what he described as "shrinking resources" and to "streamline delivery of services," Cullianane consolidated the special operations division with about 200 officers, and the traffic division with about 89 officers, under one deputy chief in the field operations bureau. The special operations division was originally formed and trained to handle mass demonstrations. With the decline in recent years of mass protests, the division has been called upon to serve a number of other functions.

Cullinane's reorganization plan will allow the new deputy chief of the traffic and special operations division to move personnel about among the separate functions as the need arises.

Cullinane said the purpose of promoting the seven district commanders to deputy chiefs was to give them additional power and authority. At the same time, the reorganization plan will eliminate the patrol division from the field operations bureau.

One of the changes contemplate, but ultimately not made after the Citizen's Advisory Council opposed it, was the merger of the community relations and youth divisions. The two divisions remain separate under the reorganization plan.

The seven police district commanders who were promoted to deputy chief are: Herbert R. Horwitz, first district commander; George L. Chapoutot, second district: Charles M. Troublefield, fourth district; Carl V. Profater, fifth district; Theodore R. Carr, sixth district; William R. Dixon, seventh district.

Meanwhile, in the city fire department Joseph R. Jeffrey was promoted from battalion chief to deputy chief and is the new fire marshal for the District of Columbia. He takes the place of Deputy Chief John P. Breen who was transferred to the training division to take the place of Deputy Chief Scott L. Seymour.