From January 1942 all NDH forces inside zones of operations came under German command and from October 1942 entire Bosnian territory between Sava river and demarcation line become Operative Zone under German rule, those agreements represented indirect way of chetnik collaboration with Germans.
First formal agreement between NDH and Bosnian Chetniks was signed on May 28th, 1942 in village Lipac, single document which covered Ozren and Trebava chetnik detachments, and covered part of Eastern Bosnia near river Bosna and railway Sarajevo-Brod. On July 9th, amendment in form of a statement was added by which agreement regulation also cover relations of two Chetnik detachments with German and Italian forces in NDH.
It seems, but NDH government doesn't state them, that two similar agreement have been signed earlier first with Uroš Drenović, commander of Chetnik detachment "Petar Kočić" in Varcar Vakuf (Mrkonjić Grad) in county office on 27th April 1942, on NDH part agreement was signed by county Marko Jundić, Home Defense Major Ervin Rataj and acting ustasha logornik K. Urumović.
Second with Lazo Tešanović. After May 28th, during next three weeks three more agreements have been signed for areas of Central and North-West parts of Bosnia. Two of them with Radoslav Radić, commander of chetnik detachment "Borje". First was signed in Banja Luka June 9th and covered Western area and second on June 14th in Prnjavor and covered Eastern area. Third agreement was signed with Borivoj Kerović, commander of Majevica chetnik detachment on June 15th in village Lopare. In 1943 another agreement was signed with chetnik commander Radivoj Kosorić in village Kovanje, Eastern Bosnia on January 16th. Biggest agreement was the one signed on May 28th, 1942. By that agreement commanders of Ozren and Trebava chetnik detachments recognized sovereignty of NDH and as her citizens expressed there loyalty to state and poglavnik, both chetnik detachments had from that day forward to cease all hostilities against military and civilian authorities of NDH. NDH authorities where to restore regular administration in chetnik areas, and chetnik detachments promised help in normalization of situation. As long as state of emergency exist, chetnik leader where to govern in there areas, under supervision of NDH authorities. Main provision (Article 5) states:
As long as there is a danger of armed partisans gangs, chetnik formations will voluntary cooperate with Croatian armed forces in fighting's and destruction of partisans and in these operations will be under the command of Croatian armed forces. In these operation chetnik commander will command there detachment.
Chetnik formations can involve themselves in operations against partisans at there own initiative, but they must report this to Croat military commanders in advance.
Chetnik detachments will be supplied with need ammunition by NDH military authorities. Chetniks wounded in anti-partisan operations will receive care in NDH military hospitals, and widows and orphans of chetnik soldiers killed in combat against partisans will receive direct financial aid from the state equal to one being received by widows and orphans of NDH soldiers.
http://www.vojska.net/eng/world-war-2/independent-state-of-croatia/chetniks/
