The House of Lords Constitution Committee has published a report on triggering Article 50, which concludes that: (i) Article 50 is the only viable route for the UK to withdraw from the EU; (ii) the UK government should not trigger Article 50 without consulting Parliament and that it would be constitutionally inappropriate for the Executive to act upon an advisory referendum, with such significant long-term consequences, without explicit Parliamentary approval; and (iii) the UK Parliament should play a central role in the decision to trigger the Article 50 process, in the subsequent negotiations, and in approving or otherwise the final terms under which the UK leaves the EU. The report adds to the pressure from a series of legal challenges to seek approval from Parliament to trigger Article 50 and goes further than the recent House of Lords EU Committee report published in July, which called for Parliamentary scrutiny of negotiations of the UK’s exit from the EU.