Which of the following is NOT a resource for the fire department to generate its own source of income?

The correct answer indicates that increasing departmental staffing is not a resource for generating income. In contrast, the other options presented involve methods through which a fire department can actively generate revenue or financial support.

When a fire department charges a fee for services, such as responding to non-emergency calls or providing training, it directly creates income that can be used to support operations. Fundraising events are also a valuable means of income generation, as they can engage the community and rally support for the department while bringing in additional funds. Subsidies and grants are financial support sources provided by governmental or private entities, which can help departments cover specific projects or operations without needing to increase staffing.

Increasing the number of personnel typically leads to higher operational costs rather than generating income. Staffing increases usually require additional funding for salaries, benefits, and training, which do not contribute to income generation for the department's budget. This makes the selection of an increase in departmental staffing as the option that does not serve as a source of revenue.