JEFFERSON CITY, Mo. -- The Missouri Department of Conservation (MDC) wants hunters and anglers to know that the purchase of hunting and fishing permits will be unavailable from 9 p.m. on Tuesday, May 7, through 7 a.m. on Wednesday, May 8. The brief service interruption is for maintenance to the related computer system. The system maintenance will include online permit purchases and purchases through permit vendors. MDC has minimized the time required for this necessary improvement and thanks hunters and anglers for their patience during this brief service interruption.