I contacted Scott Dyer and am posting the following with his permission.
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The Consent Decree states as initially put into effect in 2014, that the Settling Defendants (e.g., the distributors and the FBOs) could still sell avgas with lead content of not more than 0.56g/l. This is the maximum lead content of 100LL.
The Consent Decree, at Section 2.3.1(d), specifically contemplates the Court, on motion, lowering the lead content allowed to be sold:
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At any time after 100VLL or any other lower lead alternative to 100LL Avgas that is
approved for aviation use becomes Commercially Available for the California market, any
Party may file a motion to modify the terms of Section 2.3.1(a) on the basis that either:
. . .
(b) Avgas with a lead concentration at a level of 0.45 is more than 10 percent over the lead concentration level in fuel that is approved for aviation and that is Commercially Available such that the level should be adjusted downward. The Party seeking a modification pursuant to this Section shall provide written notice to all affected Parties and shall meet and confer with all interested parties for a period of not less than 30 days before filing any such motion. The Party bringing a motion to modify this consent judgment shall bear the burden of demonstrating that the concentration limit in Section 2.3.1(a) should be modified pursuant to this Section 2.3.1(d).
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G100UL as a maximum lead concentration of 0.013g/l (edited to proper value as per George Braly), and the 0.013g/l (edited) lead concentration of G100UL is more than 10% less than the 0.45g/l concentration specified in the Consent Decree. Thus, as a matter of contract given G100UL’s commercial availability, the court is empowered by all the settling parties to reduce the lead concentration of any avgas that may be sold by the settling distributors and the settling FBOs, and the court is giving effect to the parties’ settlement terms from 2014. It's the deal that the distributors and FBOs in the case made 10 years ago, assuming commercial availability.
The court enforcing the terms of the Consent Decree will ultimately be a judgment, I think you are imbuing the term with a meaning it doesn’t have."