Observational tools are used in QRIS to measure features of process quality in early care and education (ECE) programs. These tools are used for a variety of purposes including in assigning ratings and as a method for supporting programs' continuous quality improvement (CQI). This fact sheet provides a descriptive analysis of how observational tools are being incorporated across all currently operating QRIS in states and localities, using 2015 data from QRIScompendium.org (author abstract)