</font><font color="blue" class="small">( Forgot to mention that a Chemical Applicators License is required also for any applications other than very small amounts on your own property. Have to take training to get a license.
ksmmoto )</font>
The AMOUNT you spray (on your own property doesn't really have anything to do with the "permit". It's legal to spray (unlicensed) on your own property. What comes in to play is BUYING certain chemicals. Ones on the "restricted use" list are off limits unless you have proper license. You can't even buy them, muchless spray them. Glyphosate and 2,4-D products are still available without licence.
Take your act off of your property and all bets are off. It's illegal to spray for hire, or spray on property belonging to someone else, even applying non-restricted chemicals, unless you are properly certified.
There is a laundry list of sub-sections on the test and licensing proceedure for such things as commercial lawn care, AG, golf course, maintaining right-of-ways,
The testing covers saftey issues mostly. They deal with weather conditions, spill preparedness, and documentation of use. After the test, you must prove you have proper insurance to get the license.
The real catch 22 is, for MOST commercial application permits, you must also prove past experience with handling pesticides. WIthout a permit you can't spray. Without experience spraying, you can't get a permit. (Can you say typical Government B.S.) The only alternative is to work for a licensed applicator to gain required experience.
The entire proceedure is regulated on a state level, based on federal (EPA) guidelines.
In some states, it's even against the law to apply fertilizer on non-owned property or for hire without permit. Some states allow you to spread only granular fertilizer without permit.
Most of this came about with the popularity of "Lawn Care Operators". They needed regulation (as well as some farmers). Now that they are required to be licensed,(as well as license required insurance) they are serving as their own "police". Most legal applicators will turn in NONlegals in a heartbeat. Fines are steep.
With all the red tape involved, it is becoming more practical to hire a licensed applicator for most spraying jobs.
And I just bought a 3-point spray rig.