Section 501.3(c) provides that placement of the inmate in administrative detention or any limitation of privileges in accordance with the section may be imposed for up to a maximum of 120 days, but may be successively renewed in 120 day increments. Requests for renewal will be handled similarly to initial requests, i.e., the requesting entity will prepare a memorandum for the Attorney General referencing the earlier request and the Attorney General's decision to impose special conditions; the memorandum should state whether the circumstances identified in the last request to the Attorney General for special administrative measures have changed and, if so, what changes are recommended either to tighten up or loosen the restrictions; the memorandum will be referred to OEO; and OEO will prepare a recommendation to the Attorney General and any required instructions from the Attorney General to BOP. Requests for renewal should be submitted to the OEO at least 30 days prior to the expiration date of any previously imposed special conditions to allow the Criminal Division sufficient time to prepare another decision memorandum for the Attorney General and for the Attorney General's review.