Section 22.91 - Appendix 1: Procedures for Post-renovation Cleaning VerificationI.Interiors. (i) A Certified Lead-safe Renovator-supervisor must perform a visual inspection to determine whether dust, debris or residue is still present. If dust, debris or residue is present, these conditions must be removed by re-cleaning and another visual inspection must be performed.(ii) After a successful visual inspection, the Certified Lead-safe Renovator-Supervisor must: (A) Verify that each windowsill in the work area has been adequately cleaned, using the following procedure: (1) Wipe the windowsill with a wet disposable cleaning cloth that is damp to the touch. If the cloth matches or is lighter than the cleaning verification card, the windowsill has been adequately cleaned.(2) If the cloth does not match and is darker than the cleaning verification card, re-clean the windowsill as directed at 454 CMR 22.11(9)(f), then either use a new cloth or fold the used cloth in such a way that an unused surface is exposed, and wipe the surface again. If the cloth matches or is lighter than the cleaning verification card, that windowsill has been adequately cleaned.(3) If the cloth does not match and is darker than the cleaning verification card, wait for one hour or until the surface has dried completely, whichever is longer.(4) After waiting for the windowsill to dry, wipe the windowsill with a dry disposable cleaning cloth. After this wipe, the windowsill has been adequately cleaned.(B) Wipe uncarpeted floors and countertops within the work area with a wet disposable cleaning cloth. Floors must be wiped using an application device with a long handle and a head to which the cloth is attached. The cloth must remain damp at all times while it is being used to wipe the surface for post-renovation cleaning verification. If the surface within the work area is greater than 40 square feet, the surface within the work area must be divided into roughly equal sections that are each less than 40 square feet. Wipe each such section separately with a new wet disposable cleaning cloth. If the cloth used to wipe each section of the surface within the work area matches or is lighter than the cleaning verification card, the surface has been adequately cleaned.(1) If the cloth used to wipe a particular surface section does not match the cleaning verification card, re-clean that section of the surface as directed at 454 CMR 22.11(9)(f), then use a new wet disposable cleaning cloth to wipe that section again. If the cloth matches the cleaning verification card, that section of the surface has been adequately cleaned.(2) If the cloth used to wipe a particular surface section does not match the cleaning verification card after the surface has been re-cleaned, wait for one hour or until the entire surface within the work area has dried completely, whichever is longer.(3) After waiting for the entire surface within the work area to dry, wipe each section of the surface that has not yet achieved post-renovation cleaning verification with a dry disposable cleaning cloth. After this wipe, that section of the surface has been adequately cleaned.(iii) When the work area passes the post-renovation cleaning verification, remove the warning signs.II.Exteriors. (i) A Certified Lead-safe Renovator Supervisor must perform a visual inspection to determine whether dust, debris or residue is still present on surfaces in and below the work area, including windowsills and the ground. If dust, debris or residue is present, these conditions must be eliminated and another visual inspection must be performed. When the area passes the visual inspection, remove the warning signs.Amended by Mass Register Issue 1264, eff. 7/4/2014.Amended by Mass Register Issue 1330, eff. 1/13/2017.Amended by Mass Register Issue 1440, eff. 1/13/2017.