Mezuzah and tefillin are two of the most complex religious articles in Judaism. The laws of how to make these articles in a kosher manner are multifaceted and extremely detailed. Furthermore, even kosher mezuzahs and tefillin may deteriorate over time, rendering them non-kosher.

Every year the CMC conducts a number of campaigns throughout Chicago land to help people purchase their mezuzahs and tefillin from reliable sources and to have them checked regularly for maintenance.

Thanks to these periodic campaigns and to year-round home visits, countless Chicago land Jews have learned about and participated in these important mitzvahs, some for the very first time.