The Spanish Constitution garantees the equality before the law, without discrimination based on birth, race, sex, religion, opinion or any other personal or social condition or circumstance. The Organic Law for the effective equality of women and men determines that the equal treatment and opportunities between women and men is an informing principle of the legal system and, as such, will be integrated and observed in the interpretation and application of legal regulations. That law also provides that the principle of equal treatment and opportunities between women and men is applicable in the field of private employment and public employment, will be guaranteed, in the terms provided in the applicable regulations, in access to employment, including work for self-employment, in professional training, in professional promotion, in working conditions, including remuneration and dismissal, and in affiliation and participation in trade union and business organizations, or in any organization whose members exercise a specific profession, including benefits granted by them.