Who's job is it to provide one where you live? Who cares? Take responsibility for your own safety and do it yourself.
Take responsibility for yourself and those around you. Ensure there are working smoke detectors and carbon-monoxide detectors where you live.
Smoke detectors save thousands of lives and millions of dollars of property damage every year.
1. Test it monthly
2. Change the battery every year
3. Know what the chirping sound means - low battery
4. Know what the alarm sounds like and what to do in advance. Wandering around wondering "What is that sound?" could kill you.