During the next three weeks, the code changed five times.

If the bar association approves the proposal, a model national code would change.

Those codes do change when the aircraft is re-allocated to a different unit.

However, the frequent territorial and administrative changes of the period meant that the codes changed often.

The codes change so fast that administrators can't keep up with them.

The voluntary code significantly changed how drug company representatives interact with doctors.

The game's code changed little since Marathon 2, and many levels can be played unmodified in both games.

The code itself does not change; new legislation just creates exemptions to the old.

The altered code changed the computer's ability to discern certain ratios and relationships.

The code had changed right at the top of the hour.