The New York Police Department met with building managers Wednesday to hand out reports on strengthening sites that might become targets of terrorism.

The 100-page book is designed to help building owners assess the risks to the property and to integrate better security into architectural designs.

"This marks what we believe is a major step forward in our efforts to communicate what we know about how to prevent an attack or mitigate the effects of an attack on a building in New York City," said Police Commissioner Ray Kelly.

Among the recommendations are sealing off air conditioning and ventilation systems to prevent chemical or biological attacks and controlling access to entrances.

The report does not cite specific buildings at risk for terrorist attacks.

Copies of the book were handed out at police headquarters and at a conference for real estate owners and private security personnel.

The report is also available on the NYPD's webpage.

"We in the book and online propose a formula that owners of buildings can apply to their structures to see if they're high risk medium risk or low risk," said Counterterrorism Commissioner Richard Falkenrath.

Meanwhile, both the House of Representatives and the Senate are creating proposals to have the Department of Homeland Security provide anti-terrorism money to the city through the "Securing the Cities" initiative.

The House's version is offering $40 million and the Senate's version offers $10 million.