; (2) ensure that families have access to drug screening, substance use disorder treatment, medication-assisted treatment approved by the Food and Drug Administration, and parental support; and (3) build upon lessons learned from programs such as the maternal, infant, and early childhood home visiting program under section 511 of the Social Security Act. (b) Grant program The Secretary shall award grants to States, units of local government, and tribal governments to— (1) develop programs and models designed to keep pregnant and post-partum women who have a substance use disorder together with their newborns, including programs and models that provide for screenings of pregnant and post-partum women for substance use disorders, treatment interventions, supportive housing, nonpharmacological interventions for children born with neonatal abstinence syndrome, medication assisted treatment, and other recovery supports