For child car seats to legally be sold in the UK, they must pass various tests and gain recognised approval. To be sold, they can be approved to R44.04, which is a regulation that has been running for some years, or they can be tested under the new R129 (i-Size) standard, which was established in summer 2013.
This blog looks at the different group stages for R44.04 child car seats, along with the weight and the height limits that you should take into consideration. There are three main group stages and also combination group stages to create multi stage, longer lasting seats.
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