The phrase "although not mandatory" is correct and usable in written English.
It can be used to indicate that something is optional or not required, often in the context of rules, guidelines, or recommendations.
Example: "Participants are encouraged to submit their reports by Friday, although not mandatory."
Alternatives: "though not required" or "even if optional".
Almonds, although not mandatory, add a pleasant crunch.
Although we find no relevant case law interpreting the Field Code provision, prior to North Dakota's adoption of it, we find relevant interpretations after our enactment; and although not mandatory, California's interpretation of it is somewhat persuasive.
Paired Course: Although not mandatory, this course is meant to be taken in conjunction with GSD 5275 which is also 2 credits and meets at the same time as 5276.
Finally, in terms of overall setup and although not mandatory, we recommend the presence of a service Filter.
Although not mandatory, it is devoted to faithful who perform the worship, celebrations and other tasks in the temple all of them are called "moral work", as they are expected to participate in the moral elevation of followers.
Although not mandatory for bud emergence and the early steps of bud growth, formins and tropomyosins are clearly required for cell cycle completion, possibly because of their crucial function in cytokinesis.
Sexual education is available (although sometimes not mandatory) in many schools.
· For the first time the power firms will be "encouraged" to top up existing loft insulation for the most vulnerable, although this is not mandatory.
Although this is not mandatory, collecting this data will give us a better understanding of the composition of our armed forces and help ensure our policies and practices fully support our personnel".
Although it is not mandatory, the F3 approach may also be applied in iterative and incremental activities, starting from a small domain and then adding features.
Students could therefore further elaborate on their perceptions if they had more to say about a particular issue, although it is not mandatory to do so.
