[영문]This article describes the efforts and special initiatives of New York City's Administration for Children's Services to improve services to immigrant and English language learner populations. Children's Services convened an immigration issues advisory subcommittee, created special tools for child welfare staff, collaborated with legal agencies to assist foster children with immigration status adjustments, improved agency data collection, and launched an agency-wide training initiative on immigration issues. The challenges encountered by Children's Services offer important insight for child welfare agencies in other jurisdictions designing strategies to strengthen their services for immigrant communities.