  A set of reals is \textit{universally Baire} if all of its continuous
preimages in topological spaces have the Baire property. $\sf{Sealing}$ is a
type of generic absoluteness condition introduced by Woodin that asserts in
strong terms that the theory of the universally Baire sets cannot be changed by
forcing.
  The $\sf{Largest\ Suslin\ Axiom}$ ($\sf{LSA}$) is a determinacy axiom
isolated by Woodin. It asserts that the largest Suslin cardinal is inaccessible
for ordinal definable bijections. Let $\sf{LSA-over-uB}$ be the statement that
in all (set) generic extensions there is a model of $\sf{LSA}$ whose Suslin,
co-Suslin sets are the universally Baire sets.
  We show that over some mild large cardinal theory, $\sf{Sealing}$ is
equiconsistent with $\sf{LSA-over-uB}$. In fact, we isolate an exact large
cardinal theory that is equiconsistent with both (see \rdef{dfn:hod_pm}). As a
consequence, we obtain that $\sf{Sealing}$ is weaker than the theory
$``\sf{ZFC} + $there is a Woodin cardinal which is a limit of Woodin
cardinals".
  A variation of $\sf{Sealing}$, called $\sf{Tower \ Sealing}$, is also shown
to be equiconsistent with $\sf{Sealing}$ over the same large cardinal theory.
  The result is proven via Woodin's $\sf{Core\ Model\ Induction}$ technique,
and is essentially the ultimate equiconsistency that can be proven via the
current interpretation of $\sf{CMI}$ as explained in the paper.
