Sentence examples for been compulsory from inspiring English sources

Since the 1960s, black boxes have been compulsory for aircraft.

Since 2009 diesel particulate filters (DPFs) have been compulsory in new diesel cars.

Primary education begins at age seven, lasts for seven years, and has been compulsory since 1987.

Since the early 1990s the first nine years have been compulsory.

Since 1999, instruction in Welsh has been compulsory for students in state schools up to the age of sixteen.

Even if the countries had agreed to the 4 percent target, it would not have been compulsory.

The bank said 1,000 redundancies out of 15,000 in the last three years had been compulsory.

Ethics classes have been compulsory in the city's schools since 2006, introduced after a so-called "honour" killing of a Muslim woman by her husband.

Bank guarantees, or Aval Bancario, from developers have been compulsory by law on off-plan purchases in Spain for the past 40 years.

Diesel particulate filters (DPFs) have been compulsory in new diesel cars since 2009 but can become clogged and cause breakdowns, particularly for city drivers.

But it's quite tricky because we must not forget this is a new subject, it's never been compulsory at key stage two before".