This clearly begs a number of questions. Do dead flies count? If there are two flies are they allowed to stay? If there are more than two do you kill them all? And how do you actually kill and dispose of them?
The six-point scale applies to the smell on a scale of odourless to unbearable. There should be no dust, surface water, litter or ice – and of course no more than two flies.
An official said that: “while the rule is specific and quantified the inspection methodology will be flexible”. So just like many government targets over here!
Image from fohn.net