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MLS Delivery: Home

This guide introduces delivery at the Massachusetts Library System and provides all the necessary information about delivery, routes, scheduling, claim forms, etc.

Want to join the Delivery List-Serv?

To be added to the delivery email list and receive updates and announcements regarding delivery, please email

Please make sure at least one person from your library receives emails. We periodically put out important policy information and pertinent changes. 

About MLS Delivery

MLS contracts with Optima Shipping. MLS Delivery is provided to support resource sharing amongst Massachusetts Libraries. Currently, delivery is provided to over 500 libraries of all types across the state of Massachusetts. MLS delivery is used to ship between 14 and 15 million items annually among MLS member libraries and the library resource sharing networks.

Welcome to Delivery Packet

Is your Library or some of your staff new to delivery? Find everything you need to know about delivery in our
Welcome to Delivery Packet.

Welcome to Delivery at the Massachusetts Library System!

This guide will provide you with all the necessary information about delivery, such as route information, what to do with mis-sorted items, filling out a lost or damaged claim form, etc.

Is your Library or some of your staff new to delivery? Find everything you need to know about delivery in our Welcome Packet.

Delivery Contacts Reminder

When to Contact MLS

  • Changes made to your delivery schedule due to holidays, library closings, additions and cancellations
  • If your delivery is delayed
  • Receiving mis-sorted or damaged items
  • Joining the delivery email list
  • General delivery questions (mis-sorts, bin requests, items lost in transit, etc.)

 When to Contact Optima

  • If your library has an unscheduled closure or is inaccessible for delivery
  • Changes made in delivery instructions needed for your driver (alarm codes, spare keys, etc.)
  • Ongoing delivery issues, including mis-sorted, missing, damaged items, driver issues, etc.
  • Issues or requests that occur over the weekend

Contact Information

Have a delivery question or concern? Contact Us!

Optima Customer Service:

(800) 872-4004

MLS Delivery:

(508) 357-2121 option 1
(866) 627-7228


Route Delays

MetroWest 3 Route Delay: This route had to be broken up between 3 drivers today. Some stops will be ok but Belmont, Arlington and Watertown will not be delivered until later this afternoon.

The following libraries are affected:

Winchester Public Library
Somerville Public Library
Medford Public Library
Woburn Public Library
Robbins Library
Belmont Public Library
Watertown Public Library
Waltham Public Library
Bedford Public Library

SEMLS 7: I’m sorry to report that the majority of this route will not be done today due to driver shortage. We were only able to give another driver 2 stops to do today. These 2 libraries will receive delivery today Osterville and Sandwich.

The following libraries will not receive delivery today but will receive delivery tomorrow 9/24:

N. Falmouth
W. Falmouth


E. Falmouth



Marston Mills



Mass Maritime

Marion Elizabeth Taylor.

We apologize for the inconvenience.