These interpretations will remain in effect until they are
rescinded, modified or withdrawn. This will be done when and if the
Administrator concludes upon reexamination, or in the light of judicial
decision, that a particular interpretation, ruling or enforcement policy
is incorrect or unwarranted. All other rulings, interpretations or
enforcement policies inconsistent with any portion of this part are
superseded by it. The Portal-to-Portal Bulletin (part 790 of this
chapter) is still in effect except insofar as it may not be consistent
with any portion hereof. The applicable statutory provisions are set
forth in Sec. 785.50.