Euro Emissions (what falls into what category?)

[MW]

Is the following correct? This is as new, and before all these exhaust traps of course

1750-1787 Euro 4
1788-1907 Euro 4
1909-1953 Euro 5?
2001-2177 Euro 5?
2200-2250 Euro 6

4023-4124 Euro 2
4125-4717 Euro 3
4718-4829 Euro 4
4830-4995 Euro 5
5401-5430 Euro 5
5501-5518 Euro 5
6101-6148 Euro 6
6701-6854 Euro 6

[MW]

I always forget the smaller buses exist.

731-734 Euro 4?
751-764 Euro 5?
801-875 Euro 5?

[Trident 4609]

I always forget the smaller buses exist.

731-734 Euro 4?
751-764 Euro 5?
801-875 Euro 5?

1750-87 are Euro 3 spec.

[2206]

I always forget the smaller buses exist.

731-734 Euro 4?
751-764 Euro 5?
801-875 Euro 5?

6012 - 6021 are also missing of there.
Euro 3.
Yes, 1909 - 1953 and also 7019 - 7033 are Euro 5.