It's federal law that the form be signed... you start the process as a listing agent.

It is mandatory in our California brokerage and typically it is the seller/landlord who initiates this form.   As part of the listing package, I like to have the seller complete all disclosures so they can be provided to a prospective buyer.  Ditto for landlords and tenants.      

Praful in California the listing agent initiates all the disclosures and the buyer and seller sign that they read and received it, Endre

This comes as a seller/landlord disclosure in California.  Seller/landlord initiates and is a form required even if the house was built after 1978.  I guess you can still buy lead paint in parts of the world.

If I take a listing I have my sellers sign it at that time if the home was build prior to 1978 and upload that document to the MLS.  If I write an offer on house build prior to 1978 I get my buyers to sign with the offer.  I take care of MY clients regardless of side of transaction I'm on.

Since it is about the house, the listing agent does it.

Best to do this very well if you dont want to get sued and have the feds all over you.

It is and the listing agent is responsible as part of the seller disclosure in Oklahoma.

Agent provides the form to the seller. Seller fills it out and it is made available to buyers. When we are listing agents it is part of our listing paperwork process and then uploaded in the mls with the listing. If I am the buyers agent and it is not provided I request it. -Kasey

It's federal law.  Needs to be initiated by the seller.  Must be completed by all parties on or before the effective date of the contract, and it is imperative that the LBP pamphlet be provided to the buyer.

the listing agent should have this form filled out at the time of taking the listing...

The listing agent. I explain that the signed Lead Paint must be presented with the offer

It is the must in CA,

As a listing agent I always sign it with both principals. 

I always have it signed by the seller as part of the listing agreement. 

LA starts the process, mandatory.

It's mandatory here and initiated by the listing agent.  I've never, ever had anyone know anything or elect to test anything...  

Listing agent and seller

    Federal Law.  Make sure it gets done, whether you represent Seller or Buyer, or a Tenant or a Landlord.

       I sold a 1960's house recently; the Listing Broker (experienced) forgot it.  Not in the associated documents, not attached to the contract, etc.  At the closing,  I slid the form across the table to the Title Attorney.  He said, "Oh yes, Mrs. Seller, I will need your signature on this."   

Michael Jacobs has this one.  A

Praful Thakkar It is mandatory here and part of the listing package.

The Seller. Because the form discloses whether or not the seller has/is going to provide the buyer with any lead-based paint information about the home.
Since all signatures need to be on the same form, buyer will receive the seller- signed document to add their own signatures (along with the agents') once there is a transaction.

I believe it's the listing agent here in NY.

Nina Hollander nailed this one!

Follow your local rules and practices.

Here in FL it is and has been for a very long time. Part of the listing package and in the sale contract.

We use them in VA, but buyer can waive their right to test for lead based paint.

Listing agent, but ultimately, the responsibility is the seller's

The listing agent. I upload a dummy stating this is a brand new home. No disclosure is needed,

I put it in the documents I upload with a listing - how can the buyer know what to check - the buyer and agent do not have the competency to initiate this form.  Praful Thakkar - this seems like such an obvious answer - what is behind the question.

Usually the listing agent, but have been known to prepare it when submitted an offer if one is not available.

In California ... yet it is.  The Listing Agent provides to the seller for completion and buyers, sellers and agents sign it. 

Yes, Mandatory.  I have the seller start it when I have the listing, but as a selling agent I've had the buyer initiate the form many times.

mandatory just do it

Yes it is!!  Huge fine if it's not signed by all parties thanks to you know who!

The buyers agents must submit it with contract

It is the law.

In Oregon, the lead paint addendum is originated by the listing side as it discloses what the seller knows about lead paint in their home and whether or not any tests have been performed.

It's part of the seller disclosures.

It should be initiated by the Seller or Landlord and then initialed or signed by the buyer, tenant, and/or agent.

YES,

The landlord or seller provides it in CA.

It's part of the lease or purchase contract these days (built in).

Landlord if rent and seller if homeowner. I had someone who went temporarily insane and challenged this. While I didn't have the form signed, I did disclose in the contract but it cost $ to defend it. Get the form signed! 

As the listing agent i always have my seller sign this when getting the listing. The exception is bank owned homes where some banks include it in their bank seller disclosures

The listing agent initiates the process normally. 

Yes, it is.  I don't know if it's specified who has to initiate the process as both sides are responsible for having it done.

The buck starts AND stops with the listing agent. Even if you leave the Disclosures in the home for each buyer, it is the LA's responsibility to get that form signed by all parties within 10 days per federal law.