Cleancare, you realy ought to know what you are talking about before you post. As John has said and I have ..... you provide the certificate having applied the retard treatment. No inspectors are called in, ever. If they were you are telling me that there are hundreds of inspectors at our beckon and call to attend each property that is treated. Obviously this isnt the case..... I am not sure which argument you are reffering to. I am not arguing any point, simply you are wrong so there is no argument. Best, Dave. P.S. If you are applying a fire retardent to those people who need it by law then you are having them break the law by not having a certificate..