This funding is to support the continuation of The Household Income and Child Development in the First Three Years of Life project (aka Baby’s First Years, or BFY). Upon a one-time sample contact catch-up with study participants, SRO will start periodic contact information updates with a goal of reaching all respondents to perform an exhaustive update of their contact information (address, phones, emails, contact persons). SRO will continue to update the Sample Management System throughout the 4 years of the continuation and will share with the BFY research team via an agreed upon release schedule.