Can plastic bottle lids be included in in the plastic bottle collection bins if they are taken off the bottle?

The Highland Council requests householders not to put any bottle caps in the recycling bins. Although, some are the same type of plastic as some of the bottles that is collected, not all are and it would not be possible to easily distinguish the two. Also if caps were perrmitted some people might leave caps on the bottle which might mean that bottles weren't washed and squashed beforehand. A small amount of contamination is accepted by the processors so it is not necessary to remove the plastic ring from the bottlenecks for example.

Plastic bottle tops are collected by some charities and also Stornoway plastics.