What safety precautions were taken in World War 2?

Answer 1

The coastal states were told to use a blackout policy but they did not all cooperate with the blackout methods. They were supposed to turn off the street lights, business lights, residential lights and use the black fabric to block the windows.

People were told not to drive at night with their car lights running.

Artillery guns were set up along both coasts but they never had to use them in aggression.

Some people moved from California to be safe from any Japanese invasion - some people bought up the reality for low prices. This happened in Hawaii too.

Air raid sirens were installed and others which already existed were checked or repaired. They did not run the air raid drills as the Brits had done but they did tell people what to do. Gas masks were not issued because they were being sent to the UK.