Civil Procedure - As enacted, increases minimum time from 15 to 90 days that a court must give the general assembly to remedy any defects in a redistricting plan; makes related changes. - Amends TCA Title 20, Chapter 18.

SB 1858 amends Tennessee law to extend the timeframe for the state legislature to fix redistricting plan defects from 15 to 90 calendar days after a court identifies issues. This change directly affects courts and the Tennessee General Assembly when addressing problems in legislative or congressional district maps. The bill modifies Tennessee Code Annotated § 20-18-105(a) to require courts to provide the legislature with a 90-day window to correct redistricting flaws, rather than the previous 15-day period. The legislation is procedural, focusing solely on adjusting the deadline for legislative action without altering redistricting standards or outcomes.