40 CFR 63.670(h)(2)
A video camera with a time-and-date-stamped frame at least every 15 seconds and a live feed to the control room or another continuously manned location can replace the daily 5-minute Method 22 smoke observation. The HON, ethylene and MON rules adopt the option, with their own dates.5
Limit: no smoke for more than 5 minutes in any 2 hours









