Depending on the country: the purpose, assembly, method and implementation of the group might vary.
This implementation varied as US law only required the author and year of publishing.
The curriculum and implementation has varied depending upon the state.
The implementation of values education varies widely in the district.
The implementation of the boycott has varied over time among member states.
However, the implementation varies from Unix symbolic links in several ways.
However the actual implementation varies quite widely from country to country.
The technical implementation of those values may vary, of course.
However, the actual implementation of bulk water supply tariffs varies by state.
The exact implementation of requirements varies among different districts and councils.