Sentence examples similar to rectification is obligatory from inspiring English sources

There is obligatory scatology.

Half board is obligatory.

Indeed, it is obligatory.

The "by all accounts" is obligatory.

Expertise of international standards is obligatory.

CD4 is obligatory for infection with primary HIV-1 isolates.

Creativity is obligatory.

Therefore, maintaining the construction standards is obligatory.

Therefore, it is obligatory to refine the gridblocks.

Did you know that in Australia, voting is obligatory?

Also, an entrepreneurship course is obligatory in vocational schools.