The Delaware Fire Department will add nine lieutenants to its ranks on Wednesday.
A swearing-in ceremony is scheduled for Wednesday morning.
All nine are firefighters or paramedics earning promotions based on departmental testing.
It will mark the first time the department has had lieutenants since the 1980s.
Delaware city officials said the additions will help the growing city meet demands.
The city is also opening a third fire station in the next few weeks.