Hence, complete deregulation of seed trade is not reasonable. The challenge for reform is to pare away unnecessary regulations that allow government officials to make decisions that could be left to markets, while leaving in place and even strengthening regulations that address market failures. In some countries, variety lists are limited to major crops, but other countries list allowed varieties for all crops, including vegetables and tree crops. The seed industry is becoming increasingly international and private. Greater attention to informal sector Debate regarding impact of legislation and trade agreements on intellectual property rights and biodiversity.
Lists are often extremely short.
While there may be a reasonable choice of varieties for a few major crops such as maize, rice, and wheat, lists often have few if any improved varieties for minor field crops. On the other hand, many countries, including India, the United States, Peru, and Thailand, allow companies to sell seeds of new varieties based on their own assessment of variety performance. In these countries, variety registration is voluntary. EU governments cooperate to create a single, multi-country list of approved varieties, which is published in EU Common Catalogues. Not only does this create a large and lucrative multi-country market, but each country is a potential point of entry to the EU lists.