MPs have been issued with a 10-point guide on how to change broken light bulbs in the House of Commons.
Tory MP David Davies had asked "what guidance has been issued on procedures for cleaning up and disposing of environmentally-friendly light bulbs which have been broken".
The House of Commons Commission's reply was published in Hansard and came from Liberal Democrat MP Nick Harvey.
"The instructions are that the cleaning operative, using protective gloves and wearing a mask, should collect the main fragments of the light bulb and carefully place them in a sturdy box," Mr Harvey wrote.
"All splinters should then be collected using stiff card or paper. The area should then be cleaned using a damp cloth. The splinters and the cloth should then be placed in the box.
"Once the area is clear and clean, the box should be sealed and labelled with details of the item.
"The box should then be taken to the waste removal area in the loading bay and passed to the waste disposal contractor in an appropriate manner."
