The Senedd supported plans to introduce inspection ratings for care homes, with service providers set to be required to publish "scores on the doors".
Care homes and domiciliary services, which support people in their homes, will receive one of four ratings: excellent; good; requires improvement; or requires significant improvement.
Care Inspectorate Wales (CIW) has been laying the groundwork for the reforms since 2019, including a pilot of "silent" unpublished ratings over the past two years.
The regulations, which apply to adult and children's services, come into force on March 31st, mandating the publication of inspection ratings within premises and on a provider's website.
Under the reforms, inspection ratings must be displayed conspicuously in a location accessible to service users and visitors "without delay" following an inspection report.
The ratings will apply to about 690 care homes and 450 domiciliary support providers in Wales, with the sector facing total one-off costs of £700,000 plus an extra £60,000 a year.
'Ratings matter'
Also according to an impact assessment, Care Inspectorate Wales, which has been given almost £3.4 million to date, will face recurring costs of £615,000 a year for additional staff.
Care homes will be able to appeal against a rating in an inspection report and an offence of failure to display an inspection rating will be created, with a £2,500 fixed penalty.
A 12-week consultation on the proposals ended in October and Senedd members unanimously backed the regulations on Tuesday.
Social care minister Dawn Bowden told the Senedd: "Inspection ratings matter because people matter and their care and support services matter."
She added: "Ratings will encourage a culture of continuous improvement in which service providers are encouraged to look beyond compliance and ensure positive outcomes."
Ms Bowden said ratings will showcase excellence as well as provide clarity for families seeking care and support, enabling them to compare quality and safety at a glance.

Plans are under consideration to build over 200 houses in a sleepy Welsh village
Sanitary disposal bins introduced in men's public toilets following "Bins for Boys" campaign
Officers called to Dinas Powys Woods after young person enters the river
Vale Council signs off placemaking plan for Barry
Plans filed to use Blackweir Fields for a series of live events this summer
Plans filled for controversial housing development in Cowbridge
Cardiff Council pledges to work with new Welsh Government to tackle trouble-plagued hospital
RNLI issues Sully Island safety advice after first call out of the year to the Island
Morio Lounge on course to open at Nell's Point in May
Vale Council appoints specialist contractors to carry out road improvements
Three men jailed for their roles running a drugs line which supplied cocaine in Barry
Police appeal for witnesses after fatal Penarth Road collision
New Beach and country park facilities opened following major investement
RNLI centre at Barry Island welcomes lifeguards back to Whitmore Bay
Severn tidal lagoons progress