After more than a half-year in limbo, ex-UFC middleweight champion Anderson Silva and onetime welterweight title challenger Nick Diaz finally will go before the Nevada State Athletic Commission.

NSAC Executive Director Bob Bennett today confirmed to MMAjunkie that the fighters are scheduled for their respective hearings during the commission’s Aug. 13 meeting in Las Vegas.

Silva (34-6 MMA, 17-2 UFC), who outpointed Diaz (26-10 MMA, 7-7 UFC)) in the headliner of January’s UFC 183 at MGM Grand Garden Arena in Las Vegas, tested positive for multiple banned substances, failing pre- and post-fight drug tests. Diaz flunked his third post-fight test for marijuana. The fighters, who were temporarily suspended in February, face longer formal suspensions, fines and attorney’s fees, while Silva could have his win overturned.

The scheduling of the hearings comes after months of delays, several of which can be attributed to extensions requested by the fighter’s reps. However, it’s unclear exactly it took seven months for Silva and Diaz’s cases to be heard, and Bennett declined to comment on the reason.

“Not at this point and time,” he told MMAjunkie on Monday. “It will be discussed on the 13th.”

Two months after the positive tests, which sent shockwaves through the community, Silva, who’d immediately denied any performance-enhancing drug use, said he needed more time to prepare his defense because his camp was having his nutritional supplements analyzed.

Since then, however, several reports have called the NSAC’s drug test results into question. In May, an open records request of UFC 183 testing results revealed that Diaz passed two tests conducted by the WADA-accredited Sports Medicine Research and Testing Laboratory, but failed one conducted by Quest Diagnostics. This past month, veteran MMA reporter Larry Pepe wrote on Twitter that there also were conflicting lab results in the Silva case. The NSAC declined to comment on the matter.

After Diaz’s conflicting test results were reported by MMAjunkie, Diaz’s reps and the NSAC discussed a settlement but were unable to reach an agreement. A rep from Silva’s camp, who asked not to be named because he was not authorized to speak publicly on the matter, told MMAjunkie in June that the delays stemmed from the commission, not the fighter’s camp.

During Silva and Diaz’s hearings, the commission, represented by Nevada Deputy Attorney General Chris Eccles, will present its complaint against Silva and Diaz, who will then have a chance to respond to the allegations. According to NSAC statutes, the commission issues its findings based on a standard “in which the evidence, when considered and compared with that opposed to it, has more convincing force and produces in the minds of the members of the commission a belief that what is sought to be proved is more likely true than not true.”

For more on the UFC’s upcoming schedule, check out the UFC Rumors section of the site.