The phrase "specify the extent" is grammatically correct and can be used in written English.
It means to clearly define or describe the limit or scope of something. Example: "The instructions for the project clearly specify the extent of the research that is expected."
L.S.U. officials did not specify the extent of the injury.
Administration officials have declined to specify the extent of any new effort, but they have clearly signaled an intention to expand significantly the kind of thinning already under way.
The regulations and stipulations shall also specify the extent to which such holders shall indemnify or hold harmless the United States for liability, damage, or claims arising in connection with the right-of-way or permit.
Wnt proteins are unable to induce Lgr5 ISC self-renewal, but instead confer a basal competency by maintaining RSPO receptor expression that enables RSPO ligands to actively drive and specify the extent of stem-cell expansion.
Officials did not specify the extent of contamination and said it posed no threat to the public, but the episodes highlighted China's anxiety over the possible effects of Japan's nuclear crisis.
For example, he said, if a contract requires a contractor to "prep and paint an apartment" or "replace baseboard molding," the contract should also specify the extent of the preparation work and the type and quality of the paint and replacement molding.
After clauses specifying the extent of the rights conferred, the basic clause of a royalty agreement is that which states the rate of royalty to be paid.
Security Council Resolution 242 of November 1967, "emphasizing the inadmissibility of the acquisition of territory" by force, called on Israel to withdraw its forces from territories occupied in the June war, without specifying the extent, in return for secure and recognized boundaries.
Where the right-of-way or permit involves lands which are under the exclusive jurisdiction of the Federal Government, the Secretary or agency head shall promulgate regulations specifying the extent to which holders shall be liable to third parties for injuries incurred in connection with the right-of-way or permit.
The Secretary or agency head shall promulgate regulations and may impose stipulations specifying the extent to which holders of rights-of-way and permits under this chapter shall be liable to the United States for damage or injury incurred by the United States in connection with the right-of-way or permit.
Remission stringency specifies the extent of symptomatic improvement required before the episode can be considered over.
