The performance period can be extended for up to 24 months to include older renovation projects, as long as all performance periods end within the same 30-day window. However, if you choose to include the renovation from a year ago, you must also include all other renovations going back during that entire year (ie - you can't selectively include or exclude renovation projects within your selected performance period). Also, don't forget that a project-specific waste management plan must be created for each renovation project that takes place during the performance period.
Can we include waste data from a previous renovation project? The renovation project occurred about a year ago.