Use Group X
Production
New York City Zoning Resolution
New York City Use Group X — Production. Light manufacturing, heavy manufacturing, custom production. Subsumes legacy UGs 11 + 17 + 18. Permitted as-of-right in 109 districts.
In plain English
Where things get made. Covers light manufacturing (clean, quiet production), heavy manufacturing (the loud, industrial kind), and custom production like a small fabrication shop or maker studio. Used by manufacturers, craftspeople, and industrial developers. This is the most industrial category, so it's allowed by default in 109 districts that skew toward manufacturing zones, not in quiet residential neighborhoods.
What it covers
Light manufacturing, heavy manufacturing, custom production. Subsumes legacy UGs 11 + 17 + 18.
Source: ZR §42-14 · ZR text