The phrase "a much more stringent" is correct and usable in written English.
It can be used when comparing the level of strictness or severity of two or more things, indicating that one is significantly stricter than the other.
Example: "The new regulations are a much more stringent approach to environmental protection than the previous ones."
Alternatives: "far more rigorous" or "considerably stricter".
Labour first introduced work capability assessments but the coalition introduced a much more stringent regime.
Testifying at the hearings, the Municipal Art Society urged a much more stringent law.
"It would introduce a much more stringent stream of control [by parliament through] a newly discovered principle," Eadie said.
For that to happen there would have to be a much more stringent agreement to cut production and, crucially, stronger global demand.
On Monday, Bettman announced that the league and the players union had agreed to a much more stringent standard for in-game evaluations of players suspected of concussion.
Tax experts said there was nothing sacred about the half-year rule, and the state could impose a much more stringent test for nonresidents.
I had to go through a process much more stringent than any airport I've ever been to just to get in.
Definition a) is much more stringent, because the above mentioned high variation in the control group of normal appearing adjacent non-tumorous specimens causes a high standard deviation and thereby a high threshold value.
Government's access to that data must be determined, in turn, by a separate and much more stringent set of laws born of the principles set forth in the Bill of Rights and built with the knowledge that government has the means to use our information against us, in secret.
By the values reported on Table 5 it seems that is a lower bound much more stringent with respect to for every (moreover we recall that (3.2) holds true also for ), while by the values reported on Table 6 it seems that is a lower bound more stringent with respect to for (but we recall that (3.3) holds true also for and ).
This is an innovative agreement, with much more stringent constraints than any previously negotiated non-proliferation framework.
