Basically, meeting the standards involves- (taken from Wikipedia)

• avoidance of synthetic chemical inputs (e.g. fertilizer, pesticides, antibiotics, food additives, etc) and genetically modified organisms;
• use of farmland that has been free from chemicals for a number of years (often, three or more);
• keeping detailed written production and sales records (audit trail);
• maintaining strict physical separation of organic products from non-certified products;
• undergoing periodic on-site inspections

Differing bodies oversee the certification process in different countries, sometimes with governments also being involved. Look for the mark/branding of the relevant body in your country.

• Organic Cleaning


• Organic Foods


• Organic Clothing


• Organic Bedding


• Organic Gardening


• Organic Baby Products


• Organic Head Lice Treatment


• Organic Skin Care


• Organic Restaurants