District Council 37 announced yesterday that it had adopted a tougher code of ethical practices.

Today, at 59, he is tackling perhaps the toughest code of all - the human genome.

But few doubt that higher standards mean higher costs - tougher codes, more and better inspectors, higher construction standards.

Young people are compelled to sign tough codes of showroom ethics.

We had the toughest code of ethics for Cabinet members that they've all had to sign off on.

In the process, his aides believe, he has helped the state, winning approval of one of the toughest codes of ethics in the country.

A new, tough code of ethics is causing turmoil in the Koch administration's waning days.

I think there ought to be a tough code of conduct.

Brown University followed two months later with a tough code of its own.

Not even the toughest self-imposed code can put the multinationals in the position of submitting to collective outside authority.