Русско-англо-русский юридический словарь

Ah, if you mean that there's a difference in meaning between "the decision to close" and "the decision on closing/the decision about closing", then I agree - "the decision on/about closing" could even mean "the decision against closing":). [...]

In Her decision to leave school shocked her family, we know that she decided to leave school.

In Her decision about leaving school shocked her family, we know that she made a decision about leaving school, but we don't know what that decision was - maybe she decided not to leave, maybe she decided to postpone thinking about leaving for a while. The probability is that she made a decision to leave; but we don't know that for sure.

Grammatically, both Her decision to leave school shocked her family and Her decision about leaving school shocked her family are both fine - but they don't have identical meanings. (WordReference.com)