Use of consecutive particle の

Question

I want to say:

The rules on throwing away rubbish/garbage

I thought of three possibilities:

1) ごみを捨てることの規則
2) ごみを捨てるのの規則
3) ごみを捨てるの規則

I'm favouring option 1. I think option 3 is just wrong. What about 2? Is that grammatical? Does it sound weird?

Answer 1

I think #2 and #3 are ungrammatical. I think #1 is grammatical, but I would probably say more like...

「ごみを｛捨てる/出す｝ときの｛規則/決まり/ルール｝」
「ごみを｛捨てる/出す｝際の｛規則/決まり/ルール｝」

or more simply (and probably more commonly)...

「ゴミ出しのルール」

To use the nominalizer こと, you would sound more natural if you said:

「ごみを捨てること｛についての or に関する｝｛規則/決まり/ルール｝」

but this might be a bit lengthy...

Answer 2

All three are wrong. Well, the first one is not wrong but is redundant. You should say:
ごみを捨てる規則
or to be more exact:
ごみを捨てる為の規則