probably that one will need IFR(H) and Spraying Rating
which will be type related, so when you get Spraying Rating on AS350, you will have to do another one for Bell206
Normally there will be ME SR if one wants to do it in twin engine helicopter
In next decade they will introduce Other Than White Helicopter Rating OTWHR for those that want to fly helicopters painted blue, red or any other color
I'm thinking to get FAA licences and to forget stupid EU