In short - yes, but there are alternatives for even safer outlets. The NEMA 14-30 outlet is an upgraded 30A breaker model that replaced the 10-30 back in 1996 for all new home installations as required by the NEC. Both function the same, but the NEMA 14-30 has a built in ground while the 10-30 only consists of a neutral pin, so this was effectively a safety upgrade. We have well over a thousand Smart Splitter users using a 10-30 outlet to share power with their EV and haven't had any issues that can be traced back to the outlet. If you are comfortable using this outlet you should be fine, but if you would like the ease of mind to install a NEMA 14-30 outlet instead, we recommend contacting your local electrician and asking for a quote to get an outlet swap.