On December 16th, 2008 the NJDOT received Statewide approval for the use of Rectangular Rapid-Flashing Beacon’s (RRFB) in accordance with Interim Approval 11.  Please refer to the link below for a memorandum outlining the termination of IA-11 for all new installations of RRFB devices:

https://mutcd.fhwa.dot.gov/resources/interim_approval/ia11/terminationmemo/ia11_termination_memo.pdf

The MUTCD website also contains an information brief that discusses treatments for uncontrolled marked crosswalks:

https://mutcd.fhwa.dot.gov/resources/interim_approval/ia11/informationalbrief/informationalbrief.pdf

Please disseminate this information Statewide to all jurisdictions as appropriate.  If you have any questions please let me know.