=========== Draft Upper Limit Circular ======== GRB 160310A: Swift/UVOT Upper Limits F. E. Marshall (NASA/GSFC) and A. Maselli (***BA INSTITUTION***) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 160310A 40247 s after the LAT trigger (***Author*** et al., GCN Circ. ????). No optical afterglow consistent with the LAT position *** POSITION REFERENCE is GCN_Notice *** is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white 41072 41890 805 >21.3 v 41897 42757 843 >19.9 u 40247 46726 1273 >20.4 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.53 in the direction of the burst (Schlegel et al. 1998).