PPA

|The Volokh Conspiracy |

I asked this many years ago, but was reminded of it just now, and thought I'd ask it again:

Without looking it up or having studied or practiced in New England—which is where the phrase seems to be used—what does "PPA" mean in a case caption (when it doesn't mean "phenylpropanolamine," the subject of a spate of litigation some years ago)?

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