I start with my definition of deference. This is in the context of Chevron but
applies equally to Skidmore:
Deference is a court applying a reasonable agency interpretation of ambiguous statutory text despite the court’s belief that there is a more reasonable interpretation of the ambiguous statutory text.This is my definition. I don’t think that it is controversial in the context of Chevron. (Nothing in my definition is original to me; the core concept has been expressed frequently and, so far as I am aware, unanimously (at least extrapolating from the small but, I think, representative cases I have read over the years).)
Chevron requires that a court apply a
reasonable agency interpretation despite believing that there is a more
reasonable interpretation which the court would apply if Chevron did not command deference. That deference is outcome determinative as to the interpretation in issue.
But does Skidmore demand deference in this
sense? Answering that question requires
that we actually read Skidmore. here. Since Skidmore is the law,
we should always start with the law. (As
Justice Frankfurter is reported to have said, the cardinal rules for statutory
interpretation are: “(1) Read the statute;
(2) read the statute; (3) read the statute!” Henry J. Friendly, Mr. Justice Frankfurter and the Reading of Statutes,
in Benchmarks 196, 202 (1967) (quoting Justice Frankfurter); so, where the case is the law, then read the case, read the case, read the case. The Court said in Skidmore (p. 140):
We consider that the rulings, interpretations and opinions of the Administrator under this Act, while not controlling upon the courts by reason of their authority, do constitute a body of experience and informed judgment to which courts and litigants may properly resort for guidance. The weight of such a judgment in a particular case will depend upon the thoroughness evident in its consideration, the validity of its reasoning, its consistency with earlier and later pronouncements, and all those factors which give it power to persuade, if lacking power to control.