Two vice presidents of the University of the District of Columbia, Dwight S. Cropp and Maxie C. Jackson Jr., resigned yesterday as part of an apparent administrative revamping following the resignation under fire of former UDC president Robert L. Green.

Cropp, who left Mayor Marion Barry's executive staff 1 1/2 years ago to become UDC's vice president for research development and management, will return to Barry's staff as director of the Office of Intergovernmental Relations.

Cropp and Jackson, a longtime friend of Green's who served as UDC provost and vice president for academic affairs, submitted their resignations to the university's interim president, Claude Ford, according to a UDC spokesman.

Cropp and Jackson are among 12 UDC administrators who received "excepted service appointments" from Green, who resigned as university president in August after disclosures of questionable expenditures of university funds.

Excepted service appointees serve at the pleasure of the president, and the UDC spokesman said Cropp and Jackson are the first of the 12 to quit since the Green resignation.

"Ford said he would be happy for me to remain in place, but I thought it would be good to give a new president the option of bringing in his or her own team," Cropp said in an interview about his decision to leave.

The 12 excepted service appointees appear to have generated a dispute among the UDC trustees. Several trustees have said that they want those appointees to leave to help put the Green controversy behind the university. But other trustees have said the board should not pressure Ford on the issue.

Cropp said the mayor's request for him to return to District government was not connected to the UDC controversy. Cropp served as executive secretary to the mayor from January 1979 to February 1984.

"He was looking for someone with the background," Cropp said, noting that his government service had spanned 26 years. Cropp currently earns $71,000 at UDC and will earn $66,000 in his new post, he said.

Jackson was a close associate of Green's at Michigan State University, where Green was a dean before going to UDC in 1983. Jackson could not be reached for comment, and the UDC spokesman said he did not know Jackson's plans.

John H. Britton, UDC director of public affairs, said he could not say if there would be further resignations.

"Mr. Ford is making some assessments of all the personnel in the excepted services" in cooperation with a transition committee, Britton said.

The spokesman said Ford probably would recommend interim replacements for Cropp and Jackson next week.

Ford could not be reached for comment yesterday evening.

Barry's announcement of Cropp's appointment, effective Oct. 21, cited his "many years of valuable service" to the city government and did not mention the UDC controversy.

The intergovernmental relations office acts as a liaison between the mayor and other government entities, including the D.C. City Council, Congress and federal agencies. The director's job has been vacant since Pauline A. Schneider left in July to join a Washington law firm