garden steps

I cannot seem to find any building regulation guidelines for steps leading from the rear door of my house to the garden. The only regulations seem to apply to the "access" to a dwelling, where "access" is defined as the nearest private entrance a visitor would access the dwelling from getting...

We bought our new house in December making us first time garden owners :) previously had a small town yard. We have a 3 year old and another baby due in June and want to make the garden as safe as possible but we have these stupid steps that we don't know how to change them to make them safer...