You can get notices via email of government recalls of various products. You don't have to get notices for everything regulated by the relevant agency. For instance, you can get recall notices that concern only the make and model of the car that you own.
To sign up for emails from the Consumer Product Safety Commission (various consumer products), go here.
For the National Highway Traffic Safety Administration (vehicles and associated products), go here.
For products regulated by the Food and Drug Administration (foods, drugs, medical devices, diagnostic tests, etc.), go here.