Metric speed limits in Myanmar and Liberia

According to the US Central Intelligence Agency (CIA) factbook, “only three countries – Burma (former name for Myanmar), Liberia, and the US – have not adopted the International System of Units (SI, or metric system) as their official system of weights and measures”. 1 The key word in this sentence is “official”. It does not mean that they do not use the metric system. In fact, Myanmar and Liberia use metric speed limits unlike the UK.

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