Opinion Polls

Under the terms of the Opinion Polls and Survey Law (Law no. 10/2000, of 21 June) and the ministerial order no. 118/2001, of February 23, ERC is the competent authority to proceed in Portugal with the accreditation of polling companies and to regulate and monitor the carry out and publication of opinion polls and surveys.

The opinion polls deposited with the ERC, are published on ERC’s website within 15 days from the date of deposit, under the terms of Deliberation 1/SOND/2009. All ERC’s work on opinion polls and surveys is a task of the Department of Media Analysis.

Find out more in the links below:

ERC’s provides a set of frequently asked questions about opinion polls and surveys here on ERC’s website.

If you prefer, you may contact our Media Analysis Department on +351 210 107 000 (Monday to Thursday from 9.30am to 12.30pm | 14.00pm to 17.00pm and Friday 9.30am to 13.00pm) or by email: sondagens@erc.pt.