Specifications include, but are not limited to: Currently, City Hall mail is collected no earlier than 3:30 p.m. on business days by a presort mail driver and delivered to the presort mail facility. All Mail (regardless of size or volume) is metered on the same day and then taken to the USPS automation center for processing and final delivery. Certified mail is delivered to the USPS service operation by 6 p.m. the same day it is received. Mail primarily consists of standard #10 envelopes; a small amount of certified, return receipt requested items and oversized flat envelopes and tubes. Mail is also outsourced from the W. Jack Sanders Justice Center by another presort mail facility and is not part of this request.