The United Nations mission in Nepal says the Maoist rebels' leadership wants conditions improved in U.N.-supervised camps before they register their fighters there.
U.N. officials also said Tuesday that the Maoist leadership wants the government to pay the former insurgents before the survey begins.
The registration process is part of a peace deal signed last November, which brought an end to the decade-long insurgency.
The United Nations says the communists are obligated by that peace agreement to allow verification unconditionally.
More than 30-thousand people live in the camps.
The Maoists joined Nepal's interim government last month after an insurgency that killed about 13-thousand people. But friction remains, with no certain date set for elections and the Maoists demanding that Nepal immediately be declared a republic.