The Spring 2017 Citizens Planning Institute (CPI) is now accepting applications. CPI consists of a seven-week course that provides an introduction to city planning, zoning & the development process. It is for any Philadelphian who loves where they live! If you want to make a difference in your community, CPI is for you! The Spring 2017 classes will be Wednesday evenings from 6-9pm from April 12-May 24 in Center City.