The group is seeking evidence from interested stakeholders until 2 March 2018, after which date it will consider the evidence and produce a report with recommendations on how to reduce the frequency of such accidents.
The APPG, which was formed in October 2017, is chaired by Glasgow Central MP Alison Thewliss and sponsored by the Prefabricated Access Suppliers' and Manufacturers' Association (PASMA) and Access Industry Forum (AIF).
According to the latest Health and Safety Executive (HSE) injury and ill health statistics, falls from height accounted for 18% of fatal workplace accidents in 2016-17.
Thewliss said: "That 18% of people killed at work did so because of a fall from height is a shocking statistic. The APPG for working at height has brought together concerned MPs from several parties to investigate the reasons for falls from height and ensure current regulations are sufficient for protecting workers at height in the UK."
Peter Bennett, managing director of PASMA, said: "PASMA and the AIF are glad to support the work of this new APPG which aims to study and examine the reasons for falls from height in the workplace. We look forward to seeing its recommendations to the HSE on how the number of people and families affected by falls from height can be further reduced."
Participants are asked to comment on nine questions as part of the inquiry. They include:
• What are the primary reasons for falls, or falling objects, which cause serious injuries or fatalities when working at height?
• Do you have any comments about the existing regulations for work at height, as set out in the Work at Height Regulations (2005)?
• Are there any specific measures you believe are necessary to prevent falls from height which are not currently required by law?
• What more can industry do to avoid falls from height, and share good practice?