Square D double taps

Does square D allow 12 gauge double taps or just 14?
I wasn’t sure it allowed 12 gauge or not.
Thanks for the help.

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Both wires should be same size two # 12 ok, two # 14 ok,into 15 amp breaker only a #12 & a #14 is not proper but frequently ignored .
Roy Cooke

The 15 amp HomeLine Version I’m holding, has instructions on the side for 10#-14# AWG Cu for dual wiring.



I have seen this as well. The Square D Breakers 15-30 amp are rated for 2 conductor wires 14-1O gauge. See this link: