SARS-CoV-2 was most stable on plastic and stainless steel, with a viable virus detected up to 72 hours after applications, although the titers greatly reduced over time to $10^{0.6}$ $TCID_{50}$ per milliliter on plastic after 72 hours and $10^{0.6}$ $TCID_{50}$ per milliliter on stainless steel after 48 hours. No viable SARS-CoV-2 was found after 4 hours on copper or after 24 hours on cardboard. SARS-CoV-1 was detected on plastic after 72 hours ($10^{0.7}$ $TCID_{50}$ per milliliter) and 48 hours on stainless steel ($10^{0.6}$ $TCID_{50}$ per milliliter). No viable SARS-CoV-1 was detected on copper or cardboard after 8 hours.