Missouri HB 531 requires child-proofing of all refillable e-liquid containers. It was recently approved and faces a vote in the state’s House before moving on to the Senate. A hearing hasn’t been scheduled just yet.
A similar bill is also going through the legislative process in North Dakota, HB 1186. In addition to requiring child-resistant containers, the bill also prohibits the sale of e-liquids and “smoking devices”. This is in addition to HB 1078, which amends current tobacco legislation to include e-cigarettes. Both bills are scheduled to be heard this week.