The international Infrared and Raman Users' Group (IRUG) is dedicated to the professional development of its members by providing a forum for the exchange of infrared (IR) and Raman spectroscopic information, reference spectra and materials. IRUG is composed primarily of individuals within the art conservation and historic preservation fields who use IR and Raman spectroscopy to study the world's cultural heritage.

At biennial meetings, the IRUG initiative is sustained by members and invited speakers who present papers on a range of topics. A primary goal of IRUG is to improve and expand the data generated and shared by its members. Toward this end, a cooperative database of IR and Raman spectra relevant to cultural materials has been undertaken.