The phrase "act in the absence of" is correct and usable in written English.
It can be used when referring to taking action or making decisions when someone or something is not present.
Example: "The manager had to act in the absence of the team leader during the meeting."
Alternatives: "operate without" or "take action without".
Comcast sued, challenging the FCC's authority to act in the absence of formal regulations.
§ 23:880.1 (Supp.1969), and it cannot act in the absence of a 'referral' from the Governor, La.Rev.Stat.Ann.
If Trump were to proceed without Congress, military commanders might question his authority to act in the absence of Congress.
However, decision makers are understandably reluctant to act in the absence of solid data and results supporting a policy position.
We cannot so read the act in the absence of clear and unambiguous phraseology requiring that course, or of a decision of the state court so construing it.
Race judge Herve Borcque heard the allegations but was reluctant to act in the absence of video or photographic evidence that Démare had cheated.
It was concluded that [Fe]-hydrogenase acts in the absence of any final electron acceptor by catalysing direct proton reduction on the mild steel surface.
Consequently, our holding today need only be that the President is absolutely immune from civil damages liability for his official acts in the absence of explicit affirmative action by Congress.
When the court acts in the absence of a conflict, it usually means that four or more justices believe the lower court decision is flat wrong and warrants immediate correction.
When the court agreed in April of last year to hear the case, it acted in the absence of a conflict among the lower courts; every court to encounter one of these bans, which have been cropping up over the past several years, had declared it unconstitutional.
In M. truncatula, DMI1, the ortholog of POLLUX, acts in the absence of CASTOR, because a serine-to-alanine substitution in its filter region, a highly conserved ADS/AGNHA amino acid residues in the 4th transemembrane domain, confers the integrated function of CASTOR and POLLUX (Venkateshwaran et al., 2012).
