common practice
standard practice
normal practice

I assume this is normal practice for every prison across the country.

I don't believe my real offense in terms of normal practice is great.

You should try to fit your working hours to normal local practice.

But last week, the Giants had only two full days of normal practice at home.

I knew very well that this was not the normal practice.

This is the normal practice, for example, in the historical study of the English language.

In no other way, however, can I account for what otherwise might be considered a normal practice among animals.

No official announcement was made after the 50-minute meeting, in line with normal practice.

This will probably not soon be normal practice in Hungary.

This was normal practice at many newspapers across the country.