The phrase "assessing the necessity of" is correct and usable in written English.
It can be used when evaluating whether something is needed or required in a particular context.
Example: "The committee is assessing the necessity of implementing new safety protocols in the workplace."
Alternatives: "evaluating the need for" or "determining the requirement of".
Policy makers and insurance companies decide on coverage of care by both calculating (cost-) effectiveness and assessing the necessity of coverage.
The National Institutes of Health on Thursday suspended all new grants for biomedical and behavioral research on chimpanzees and accepted the first uniform criteria for assessing the necessity of such research.
To determine the generalizability of recent data assessing the necessity of ophthalmic consultation for fungemic patients, we examined the prevalence, microbial profile, and treatment of fungal chorioretinitis and endophthalmitis among patients with positive fungal cultures referred for ophthalmologic consultation at a tertiary care medical center.
There is a tension experienced by RA patients when assessing the necessity of medication against concern regarding adverse effects [ 36].
Such reasoning implies that some imperfect but still acceptable health state is used as a reference point [ 14] in assessing the necessity of treatment or the value of health gains.
For example, the positive likelihood ratios of the Ottawa Knee and Ankle rules assessing the necessity of a roentgenographic evaluation in cases of acute knee and ankle injuries respectively are both inferior to the one reported by our PA [ 32, 33].
The Government has vigorously pressed upon us the leeway that must be allowed to a trial judge in assessing the necessities of such a situation.
Ongoing investigations of abiraterone are evaluating its efficacy in earlier disease states, exploring its synergy in combination with other therapeutic agents, and assessing the necessity for administration of concurrent steroids and gonadal suppression.
We assessed the necessity of myelin regulatory factor (Myrf) in remyelination after contusive SCI by deleting the gene from platelet-derived growth factor receptor alpha positive (PDGFRα-positive) oligodendrocyte progenitor cells (OPCs) in mice prior to SCI.
