Regulations / Standards

Catálogo de Normas da Biblioteca 

UAlg's Library Standards Catalogue. Select the database "EST - Normas". To search a standard/regulation, please place the number in the field "Nº de Registo"
Instituto Português da Qualidade 

Portuguese Quality Institute. Catalogue to search for standards, regulations, rule's projects and other normative documents 

IEEE Find Standards

Full text access to the world's highest quality technical literature in Engineering and Technology

Technical Information Superstore

Engineering industry standards and technical books fro many organizations such as ASTM, ASCE, DIN, IEEE, etc.

Major search engines

Yahoo Standards 

Webstart Computer and Communication Standards

Standardization bodies

Comite Europeo de Normalizacion (CEN)
Comité Mercosur de Normalización
International Standardization Organization (ISO)
Argentina Instituto Argentino de Racionalización de Materiales (IRAM)
Canada Standards Council of Canada (SCC)
France Asociación Francesa de Normalización (AFNOR)
Germany Deutsches Institut für Normung (DIN)
Greece Hellenic Organization for Standardization (ELOT)
Ireland National Standards Authority of Ireland (NSAI)
Italy Ente Nazionale Italiano di Unificazione (UN)
New Zealand Standards New Zealand (SNZ)
Norway Standardiseringen Nokelside - Norway Norges Standardiseringsforbund (NFS)
Portugal Instituto Português da Qualidade (IPQ)
South Africa South Africa Bureau of Standards (SABS)
Spain Asociación Española de Normalización y Certificación (AENOR)
Sweden Standardiseringen i Sverige (SIS)
UK British Standards Institution (BSI)
USA American National Institute of Standards and Technology (NIST)
National Information Standards Organization (NISO)
National Resource for Global Standards (NSSN)

Standardization bodies by sectors 

Center for Information Technology Standards. Defense Information System Agency (DISA)

Comite Europeo de Normalizacion Electronica (CENELEC)

Defense Standardization Program (DSP) - US Department of Defense

European Telecommunications Standards Institute (ETSI)

IEEE Standards

International Electrotechnical Commission (IEC)

International Telecommunication Union (ITU) - Standardization Sector (ITU-T)

Video Electronics Standards Association (VESA)

W3 Consortium (Internet)

Standards search Guide