20 C.F.R. § 641.575
Yes, grantees and sub-recipients may establish limits on the amount of time that participants spend at a particular host agency, and are encouraged to rotate participants among different host agencies, or to different assignments within the same host agency, as such rotations may increase participants' skills development and employment opportunities. Such limits must be established in the grant agreement or modification of the grant, and approved by the Department. The Department will not approve any limit that does not require an individualized determination that rotation is in the best interest of the participant and will further the acquisition of skills listed in the IEP. Host agency rotations have no effect on either the individual participation limit or the average participation cap.
20 C.F.R. §641.575