Kosher Mezuzah Checklist: requirements for a kosher mezuzah scroll (open educational dataset)

An open, plain-language checklist of the requirements for a kosher mezuzah scroll, with sources. Educational reference only; a specific scroll must be ruled on by a qualified, observant sofer or rav. The checklist covers: a certified sofer STaM writing lishmah; kosher parchment (klaf) and ink; the complete Shema (Devarim 6:4-9) and Vehaya Im Shamoa (Devarim 11:13-21) passages; correct letter forms written in order (kesidran); ruled lines (sirtut); the Divine Name on the reverse; examination by a qualified maggiah; and the twice-in-seven-years checking schedule. Standard sources: Rambam (Hilchot Tefillin, Mezuzah ve-Sefer Torah) and Shulchan Aruch (Yoreh Deah 285-291). Full plain-language guide and sources: Kosher Mezuzah kosher-mezuzah FAQ. For OU-certified scrolls with a verifiable record of the sofer and inspection, see the certified scroll collection.