The Central Library Consortium, a shared collection of books, movies and materials from 14 central Ohio library systems, is expanding.

The Granville and Pataskala public libraries and the Delaware County District Library soon will merge their collections with the consortium.

But the blending of online operations will require Columbus Metropolitan Library to curtail most of its online services for a week beginning Thursday, March 1.

According to a press release from CML, no self-checkout services will be available during that time and library staff members will be unable to look up customers’ library-card numbers. Customers will not be able to place holds on items or access their online accounts.

During the blackout period, overdue items won’t be enforced.

The library’s mobile app, columbuslibrary.org, will be operable, but might not accurately show available items.

E-books, streaming movies and online research tools will be available, as will normal in-person checkouts.

The blackout period begins at 9 p.m. March 1 and full service should resume at 9 a.m. March 8.

Also, beginning March 14, CML will join SearchOhio, making more than 16 million additional items available from 27 other libraries around Ohio. Online requests and delivery of books and other media will be available within days.

dnarciso@dispatch.com

@DeanNarciso