"Use is mandatory" is a correct and usable phrase in written English.
It is most commonly used in situations where something must be done, such as in professional or legal contexts. For example: "According to company policy, the use of safety equipment is mandatory."
Although the program's use is mandatory in some states, its reliability has been debated, and it remains voluntary in California.
The shell element based on refined theories of the CUF turns out to be very efficient and its use is mandatory with respect to the classical models in the study of FGM structures.
Their English is adequate for bridge discussion at the table, where its use is mandatory, but they do not have the confidence to buttonhole Western journalists and offer examples of brilliance.
Corn also comes under pressure because its use is mandatory in ethanol production.For soyabeans the next few weeks are critical, as their relatively long pollination period means that the outlook could improve if rain arrives.
Stephen G. Carrellas, coordinator of the New Jersey chapter of the National Motorists Association, said Parsons Infrastructure and Technology Group, the private company operating the inspection system, had much more complicated equipment to install with far more stringent deadlines, for a system whose use is mandatory.
Helmet use is mandatory in helmet states, optional (though I highly recommend it) in those states without a helmet law.
The Canadian Government is moving to adopt mandatory safety standards for helmets and plans to recommend that their use be mandatory.
This is especially true because even though G-CSF use was mandatory after S-HAM and only optional after standard DI nevertheless a substantial proportion of standard DI patients (17%) also received G-CSF thus making the component of differential G-CSF use even less relevant.
Conversely, in the studies that show positive findings, Twitter use was mandatory and often directly integrated with required assignments (Evans, 2014; Gagnon, 2015; Junco et al., 2011).
In one of very few examples, Cameron et al. (1994) explained that before regulations specified that bicycle helmet use was mandatory, the overall uptake of this injury prevention intervention was less than adequate.
Should its use be mandatory, and who should decide?
