1. INTRODUCTION

2. VARIATION IN THE SYSTEM RESPONSE
2.1. Variation in the Atmospheric Transmission
2.2. Variation in the Instrumental Throughput

3. SYNTHETIC SYSTEMATIC CHROMATIC ERRORS

4. SYSTEMATIC CHROMATIC ERRORS IN STARS AS SEEN IN DES OBSERVATIONS
4.1. SCE due to PWV Variation
4.2. SCE due to Location on the DECam Focal Plane
4.3. Residual Errors After Correction

5. SYNTHETIC SYSTEMATIC CHROMATIC ERRORS ON NON-STELLAR OBJECTS
5.1. Type Ia Supernovae

6. SYSTEMATIC CHROMATIC ERRORS IN GROUND-BASED TRANSIT OBSERVATIONS