Section 1210.203 - How do I submit sales contracts?(a)What to submit. You must submit sales contracts, agreements, and contract amendments for the sale of all coal and other solid minerals produced from Federal and Indian leases with ad valorem royalty terms.(b)When to submit.(1) For coal and metal production, you must submit the required documents semi-annually, no later than March 30 and September 30 of each year.(2) For sodium, potassium, and phosphate production, and production from any other lease with ad valorem royalty terms, you must submit the required documents only if you are specifically requested to do so.(c)How to submit. You must submit complete copies of the sales contracts and amendments to us at the applicable address given in § 1210.202(c)(2) , unless ONRR publishes notice in the FEDERAL REGISTER giving a different address.