Please explain the $25,000 limit of each subaward as it relates to indirect costs. Is that a limit of indirect costs for a particular subgrantee?

The limit is applied on each subgrantee. The maximum amount a state can include in its modified total direct rate is $25,000 for each subgrantee. E.g, if you have one subgrantee that gets $40,000 and another that gets $20,000, the amount you can include in the calculation of modified total direct costs is $45,000 (25,000 + $20,000). 

In addition, subgrantees might also have indirect costs they could claim under the grant, either as federal share or local match. However, the state is responsible for determining if local offices have a negotiated indirect cost rate or could claim a de minimus 10%. There can also be local election offices that do not have any indirect costs; in which case, there would be no percentage to claim. The grantee must make those determinations before allowing subgrantees to claim indirect costs.