The phrase "a justification on" is correct and usable in written English.
It can be used when discussing the reasoning or rationale behind a decision, action, or belief.
Example: "The committee provided a justification on the need for increased funding for the project."
Alternatives: "a rationale for" or "an explanation of".
I personally needed to send a justification, on one occasion, when the insurance company refused payment for a test that was initiated by my doctor and the insurance company sent me a bill for several thousands of dollars.
Specifically, they contend that this court has only sanctioned the use of racial classifications to remedy identified discrimination, a justification on which respondents have never relied.
A brief explanation together with a justification on why this approach was selected should be given.
It referred to the ELC as a justification of research on landscape quality preference.
Politicians can also sometimes treat the existence of innovation centres as a justification for carrying on with business as usual elsewhere.
Rather than looking on them as a useful but limited tool, banks and other institutions used them as a substitute for proper risk management, and as a justification for taking on more leverage and more risk.
Correlation of binding sites and clefts in a certain protein is a justification of our investigation on the clefts.
Vice versa, study results of such trials indicating a reduced infection risk but without difference in mortality should not be taken as a justification of non-adherence, on the condition that associated costs are not excessive.
A further reason given as a justification for moratorium on gene editing research is that it will send us on a slippery slope to non-therapeutic modifications and designer babies.
While this doctrine, in a notorious case, was made a justification for imposing on the clergy, the later Capetians did not lose the religious mystique they had inherited from their predecessors' efforts in Christian causes.
More importantly, he points out a basic error in how they weighed costs and benefits and then examines their use of uncertainty as a justification for stasis on greenhouse gas emissions.
