[en] Under the Scientific Facilities Initiative, IPNS is planning to double its operation to 32 weeks/yr. Additional scientific and technical support staff will be added for the greatly expanded user program. The IPNS Upgrade Feasibility Study was published in April 1995 and is a thoroughly documented study on a 1-MW pulsed spallation neutron source at Argonne, including cost and schedule. A new booster target (²³⁵U-Mo alloy) has been designed that will increase the neutron flux by a factor of ∼3 and construction will begin soon. A new small angle diffractometer (SAND) is in the final stages of commissioning, a prototype inelastic scattering spectrometer for Chemical Excitations (CHEX) was recently constructed and an upgraded quasielastic spectrometer (QENS) has been designed. IPNS has gained considerable operating experience with solid methane moderators, including controlled heating at periodic intervals in order to anneal the accumulated radiation induced stored energy