720 ILCS 648/20

(a) Except as provided in subsection (e) of this Section, any person 18 years of age or older wishing to purchase, receive, or otherwise acquire a targeted methamphetamine precursor shall, prior to taking possession of the targeted methamphetamine precursor:

(1) provide a driver's license or other government-issued identification showing the person's name, date of birth, and photograph; and (2) sign a log documenting the name and address of the person, date and time of the transaction, and brand and product name and total quantity distributed of ephedrine or pseudoephedrine, their salts, or optical isomers, or salts of optical isomers. (b) Except as provided in subsection (e) of this Section, no person shall knowingly purchase, receive, or otherwise acquire, within any 30-day period products containing more than a total of 7,500 milligrams of ephedrine or pseudoephedrine, their salts or optical isomers, or salts of optical isomers.

(c) Except as provided in subsections (d) and (e) of this Section, no person shall knowingly purchase, receive, or otherwise acquire more than 2 targeted packages in a single retail transaction.

(d) Except as provided in subsection (e) of this Section, no person shall knowingly purchase, receive, or otherwise acquire more than one convenience package from a retail location other than a pharmacy counter in a 24-hour period.

(e) This Section shall not apply to any person who purchases, receives, or otherwise acquires a targeted methamphetamine precursor for the purpose of dispensing, distributing, or administering it in a lawful manner described in subsection (e) of Section 15 of this Act.

(f) A person shall not knowingly procure a targeted methamphetamine precursor for a third party for the purpose of evading this Act, the Illinois Controlled Substances Act, or the Methamphetamine Control and Community Protection Act.