SSPs, which have also been referred to as syringe exchange programs (SEPs), needle exchange programs (NEPs) and needle-syringe programs (NSPs) are community-based programs that provide, access to sterile needles and syringes free of cost, facilitate safe disposal of used needles and syringes, and offer safer injection education. Many SSPs also provide linkages to critical services and programs, including substance use disorder treatment programs; overdose prevention education; screening, care, and treatment for HIV and viral hepatitis; HIV pre- and post-exposure prophylaxis (PrEP); prevention of mother-to-child transmission; hepatitis A and hepatitis B vaccination; screening for other sexually transmitted diseases and tuberculosis; partner services; and other medical, social, and mental health services.