This map identifies and displays key features of laws that seek to prevent traumatic brain injuries (concussions) in youth sports. The map includes laws in effect from 50 states and the District of Columbia from January 2009 to July 2017.

This draft memo, prepared by Angus Corbett, addresses the question of how local governments can enforce housing codes to enable low-income tenants to live in safe and healthy housing. It reviews the market for low-cost rental housing and provides an outline of the “dynamics” of this market. The memo identifies three models in use for enforcing housing codes: the “deterrence” model, the strategic code enforcement model and a meta-regulation model.