Eleven pay and display car parks in the two towns have for the first time achieved the Disabled Parking Accreditation from Disabled Motoring UK (DMUK).
The accreditation recognises car parks' suitability for disabled drivers including the size of the parking bays, ease of access and safe zones for wheelchair users to enter and exit their vehicle.
The accreditation means the car parks are among only a small number in Lincolnshire to have received the DPA.
SKDC's Executive Member Cllr Nick Craft said: "It's very important that all disabled drivers can have confidence when using our car parks and that they are as safe and accessible as possible.
"We're very pleased this DMUK accreditation confirms the parking provision on offer is to standards drivers would expect and is compliant with the Equality Act 2010. We will aim to continue to earn this award as we maintain our car parks going forward."
Peter Gravells, Area Manager of the British Parking Association said: "I am delighted that so many of South Kesteven's car parks are at the required standard to achieve the DPA. The car parks will be listed on a specially designated website www.dpaccreditation.org.uk so that disabled motorists can find out in advance where they can use facilities comfortably."
The news comes as Grantham's car parks prepare for an influx of Gravity Fields Festival visitors from Wednesday September 21 to Sunday September 25.
Drivers can benefit from over 800 car park spaces being available in the Council's six public car parks across the five day event.
Photo: (left to right): Cllr Nick Craft, SKDC's Facilities and Car Park Co-Ordinator Jeanette Hedison, Peter Gravells from the British Parking Association and SKDC's Venues and Facilities Manager Paul Stokes with the DMUK accreditation.