1. INTRODUCTION  
2. TIME SERIES PHOTOMETRY IN THE NGVS  
2.1. General Survey Information  
2.2. Photometry and Point Source Selection  
2.3. Color-Color Selection Based on Known RR Lyrae  
2.4. Time Series Aperture Photometry and Calibration  
3. RESULTS AND DISCUSSION  
3.1. Reliable RR Lyrae Detections in Outer Halo  
3.2. Radial Density Profile  
3.3. Stellar Populations and the Bailey Diagram  
4. SUMMARY AND FUTURE WORK