The appointments are for couples who had to cancel or postpone ceremonies due to the Covid-19 pandemic or for couples who have a confirmed ceremony booking with a Register Office or venue.
Demand for appointments remains high and appointments will be dealt with on a priority basis.
Marriage and civil partnership ceremonies can also now be booked at the Register Office subject to availability. Guest numbers and dates are limited due to current Government guidelines on social distancing.
From Wednesday (August 5), all ceremony guests are now required to wear a face covering in line with the latest Government advice.
Principal Registrar Dawn Galloway said: "These have been unprecedented times, not just for the Register Office but for the whole town.
"I'm grateful for the patience and understanding that people have shown, which has helped our staff enormously in such a challenging situation.
"We anticipate that demand for appointments will be high, but we will do our very best to accommodate everyone as soon as possible."
- For more information and advice, call the Register Office on 01642 729004 or visit middlesbrough.gov.uk/registeroffice
- For the latest local updates and information, visit middlesbrough.gov.uk/covid19
For information on local help and support, visit Help Boro at www.middlesbrough.gov.uk/helpboro or call Middlesbrough Council's support line 01642 729777
The latest advice from Government and Public Health England can be found at https://www.gov.uk/coronavirus