The restrictions exist because of the chemical’s "persistence" and "bioaccumulation."
Common in household bug sprays (e.g., Permethrin, Cypermethrin).
While banned for general use, DDT is not completely extinct. It is used in very specific, controlled circumstances under World Health Organization (WHO) guidelines.
Some countries in sub-Saharan Africa and parts of Asia use DDT for Indoor Residual Spraying (IRS) .
What are you trying to eliminate (bed bugs, mosquitoes, termites)? Are you treating an indoor or outdoor area? Do you have pets or small children in the home?