Answer:
You may be a little confused. Civil law can be both substantive and procedural. The substance refers to what the statute or regulation actually says. Procedure refers to the rules set out by the court or agency for handling the application of the law.
For instance, if the law says that you can't make loud noises after 10 p.m. within the city limits, the substance of the law is 1. the loud noise, 2. the time, 3. the place, and 4. the prohibition. The procedure may be to call the police, fill out a complaint form, appear in court at a certain time and place, testify in a certain manner, etc.